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Exercise 1:
- I won't go to school unless I feel better.
- Tony won't walk to you unless you question him.
- You'll be cold unless you put your overcoat on.
- You will fail the exam unless you work hard.
- You'll get a cold unless you keep your feet dry.
- I won't go to the party unless you go.
- I'll miss my flight unless I leave now.
- I can't send you a postcard unless you give me your address.
- I can't build a school for the poor unless I win a big lottery.
- I will call the police unless you leave me alone.
I/ Combine each sentences into a new one,using “adj + enough + to.v”:
1. She is old. She can work by herself.
=> She is old enough to work by herself.
2. The boy is intelligent. He can understand you.
=> The boy is intelligent enough to understand you.
3. Mai is good. She can pass the examination.
=> Mai is good enough to pass the examination.
4. The girl is not clever. She cannot mend this shirt.
=> The girl is not clever enough to mend this shirt.
5. This machine is not powerful. It cannot plough the hard soil.
=> This machine is not powerful enough to plough the hard soil.
6. Your sister was clever. She could do this exercise in a few minutes.
=> Your sister was clever enough to do this exercise in a few minutes.
7. Peter is very ill. He must see the doctor.
=> Peter is ill enough to see the doctor.
8. Mary is not old. She cannot do that work.
=> Mary is not old enough to do that work.
9. We were not early. We could not see the first part of the play.
=> We were not early enough to see the first part of the play.
10. The children were very eager. They started playing without me.
=> The children were eager enough to play without me.
11. He is tall. He can play volleyball.
=> He is tall enough to play volleyball.
12. My sister is old. She can drive a car.
=> My sister is old enough to drive a car.
13. She is beautiful and intelligent. She can become Miss World.
=> She is beautiful and intelligent enough to become Miss World.
14. Mr Robinson isn’t rich. He can’t buy a house.
=> Mrr Robonson isn't rich enough to buy a house.
15. The worker is clever. He can make fine things from wood.
=> The worker is clever enough to make fine things from wood.
II/ Combine each sentences into a new one, using “adj + enough + for + n/pro + to.v”:
1. The story is short. We can read it in one hour.
=> The story is short enough for us to read in one hour.
2. The film was very good. We saw it through.
=> The film was good enough for us to see it through.
3. The play was very amusing. They enjoyed it.
=> The play was amusing enough for them to enjoy.
4. This song is very simple. Everybody can sing it.
=> This song is simple enough for everybody to sing.
5. This book is very interesting. You should read it.
=> This book is interesting enough for you to read.
6. Some of the books are important. I must read them.
=> Some of the books are important enough for me to read.
7. He was kind. Everybody liked him.
=> He was kind enough for everybody to like him.
8. The programme on TV was interesting. We followed it through.
=> The programme on TV was interesting enough for us to follow through.
9. This exercise is very easy. The pupils can finish it in five minutes.
=> This exercise is easy enough for the pupils to finish in five minutes.
10. The weather is very fine. We can go out for a walk.
=> The weather is fine enough for us to go out for a walk.
11. The radio isn’t small. You cannot put it in your pocket.
=> The radio isn't small enough for you to put in your pocket.
12. This coat isn’t warm. I don’t wear it in winter.
=> This coat isn't warm for me to wear in winter.
13. The weather was fine. We could go camping.
=> The weather was fine enough for us to go camping.
14. Those apples aren’t ripe. We can’t eat them.
= > Those apples aren't ripe enough for us to eat.
15. This book is long. I can read it.
=> This book is long enough for me to read.
III/ Combine each sentences into a new one, using “enough + noun + to.v”:
1. We have money. We can buy that motorcycle.
=> We have enough money to buy that motorbike.
2. She has a lot of free time. She can go to the movies with you.
=> She has enough free time to go to the movies with you.
3. Mr. Brown has experience. He can solve this problem.
=> Mr Brown has enough experience to solve this problem.
4. There are enough knitting frames in the workshop. Student can practice knitting.
=> There are enough knitting frames in the workshop for students to pratice knitting.
5. I haven’t got money. I can’t go away on holiday.
=> I haven't got enough money to go away on holiday.
6. We have enough time. We can get to the airport on time.
=> We have enough time to get to the airport on time.
7. She doesn’t know enough French. She cannot read a newspaper in French.
=> She doesn't know enough French to read a newspaper in French.
8. Lien has no friends. She cannot share this work.
=> Lien doesn't have enough friends to share this work.
9. There are a lot of books. He will stay at home to read them.
=> There are enough books for him to stay at home to read.
10. Tom bought many books. I could borrow him.
=> Tom bought enough books for me to borrow him.
IV. Combine each sentences into a new one using “enough”
1. This soup is very hot. We can eat it.
=> This soup isn't cool enough for us to eat.
2. These oranges are ripe. You can eat them.
=> These oranges are ripe enough for you to eat.
3. This morning is very cold. We could go swimming.
=> This morning is cold enough for us to go swimming.
4. She can carry the box; it’s very heavy.
=> She is heavy enough to carry the box.
He didn't pass the exam because he didn't work hard
If he had worked hard, he would have passed the exam
We can avoid waiting by looking the tickets in advance
If we look the tickets in advance, we can avoid waiting
She didn't hurry so she missed the train
If she had hurried, she wouldn't have missed the train
They wanted to buy the house,but they hadn't got enough money
If they had got enough money, they would have bought the house
We must go or we 'll be late
If we don't go, we'll be late
He was planning to go to teach training college but his father died
If his father hadn't dead, he would have planned to go to teach training college
They didn't follow the map,so they got lost
If they had followed the map, they wouldn't have lost
He was driving very fast because he didn't know the road was icy
If he had known the road, he wouldn't have driven very fast
I regret not going to the airport to say good bye to him
If I went to the airport, I could say goodbye to him
He didn't pass the exam because he didn't work hard
=>If he had worked hard ,he would have passed the exam......
We can avoid waiting by looking the tickets in advance
=>If we look the tickets in advance, we can advoid waiting
She didn't hurry so she missed the train
=>If she had hurried, she wouldn't have missed the train
They wanted to buy the house,but they hadn't got enough money
=>If they had got enough money, they would have bought the house ...........................
We must go or we 'll be late
=>If we don't go ,we'll be late..................................
He was planning to go to teach training college but his father died
=>If his father hadn't dead,he would have planned to go to teach training college ..............................
They didn't follow the map,so they got lost
=>If they had followed the map,they wouldn't have got lost......................................
He was driving very fast because he didn't know the road was icy
=>If he had known the road ,he wouldn't have driven very fast....................................
I regret not going to the airport to say good bye to him
=>If l went to the airport, l could say goodbye to him...............................
1. Could
2. Couldn't
3. Was able to
4. Can
5. Couldn't
6. Couldn't
7. Was able to
8. Can't
9. Couldn't
10. Could
11. Couldn't
12. Can't
13. Can't
14. Can
15. Can't
16. Was able to
17. Could
18. Couldn't
19. Can't
20. Can't
D. Writing Put the statements in past unreal conditions:
1/ Oanh didn’t know how to solve the maths problem so she got low marks.
→ If Oanh didn’t know how to solve the maths problem, she will get low marks.
2/ You didn’t say sorry so she got angry.
→ If you didn't say sorry, she will get angry.
3/ They didn’t pass the exam and their family were very sad.
→ If theydidn’t pass the exam, their family will very sad.
4/ It rained a lot yesterday evening so we didn’t go swimming.
→ If it rained a lot, we won't go swimming.
5/ The weather was not fine enough so I didn’t go camping.
→ If the weather was not fine enough, I will not go camping.
6/ The computer broke down and she had to stop her work.
→ If the computer broke down, she will have to stop her work.
7/ Thanh was angry so we didn’t say anything to her.
→ If Thanh was angry, we will not say anything to her.
8/ Our teacher didn’t come so we canceled the party.
→ If our teacher didn't come, we will canceled the party.
9/ Quang was interested in the film so he didn’t study his lesson.
→ If Quang was interested in the film, he will not study his lesson.
10/ I had a bad headache yesterday so I didn’t go to school.
→ If I had a bad headache, I won't go to school.
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