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1.practice speaking every day or you can't improve your english
=> If you don't practice speaking every day, you can't improve your english.
2.study harder or you'ii fail in the next exam
=> If you don't study harder, you'll fail in the next exam.
3.Unless you water these plants,they will die
the plants will die if you don't water them.
4.study hard or you'ii fail in the next exam
=> If you don't study hard, you'll fail in the next exam.
5. keep calm is the secret of passing your driving test
=> If you keep calm, you will pass your driving test.
6.you can borrow the car, but you've got to fill it up with petrol
=> If you fill the car up with petrol, you can borrow it.
7.keep silent or the teacher will punish you
=> unless you keep silent, the teacher will punish you.
8.CUT YOUR HAIR OR THEY WON'T LET YOU IN
=> If you don't CUT YOUR HAIR, THEY WON'T LET YOU IN.
9.study hard and you will pass the exam
=> If you study hard, you will pass the exam.
10.save some money or you won't able to buy the house
=> If you don't save some money, you won't able to buy the house.
11 be good or your parents will be very unhappy
=> If you are not good, your parents will be very unhappy.
12.do it carefully or you'll feel sorry afterwards
=> If you don't do it carefully, you'll feel sorry afterwards.
13.ask him first and he will offer to help
=> If you ask him first, he will offer to help.
14.be calm or you'll make a wrong decision
=> If you are not calm, you'll make a wrong decision.
15.be careful or you'll cut yourself with that knife
=> If you are not careful, you'll cut yourself with that knife.
16.i don't have a car, so i can't drive you to the airport
=> If i had a car, i could drive you to the airport.
17.nam is too yuong, so he can't take part in the project to be trained to become an astronaut
=> If Nam was not too yuong, he could take part in the project to be trained to become an astronaut.
18. he doesn't do any exercise, that's why he is so unhealthy
=> If he did some exercise, he wouldn't be so unhealthy.
II/ rewrite these sentences with IF
1. Drive carefully or you will kill yourself
-> if you don't drive carefully, you will kill yourself
2. Listen carefully to me or you won't be able to do the exercise
-> if you don't listen carefully to me, you won't be able to do the exercise
3. Don't use electricity to catch fish or you will be fined heavily
-> if you use electricity to catch fish, you will be fined heavily
4. Don't drive carelessly or you will cause an accident
-> if you drive carelessly, you will cause an accident
5. Don't eat too much in the evening or you will get fat
-> if you eat too much in the evening, you will get fat
6. Staying up too late will make you tired the next day
-> if you stay up too late, you will tired the next day
7. Without working harder you will fail in the test
-> if you don't work harder, you will fail in the test
II/ rewrite these sentences with IF
1. Drive carefully or you will kill yourself
-> if you don't drive carefully, you will kill yourself
2. Listen carefully to me or you won't be able to do the exercise
-> if you don't listen carefully to me, you won't be able to do the exercise
3. Don't use electricity to catch fish or you will be fined heavily
-> if you use electricity to catch fish, you will be fined heavily
4. Don't drive carelessly or you will cause an accident
-> if you drive carelessly, you will cause an accident
5. Don't eat too much in the evening or you will get fat
-> if you eat too much in the evening, you will get fat
6. Staying up too late will make you tired the next day
-> if you stay up too late, you will tired the next day
7. Without working harder you will fail in the test
-> if you don't work harder, you will fail in the test
IV/ chọn và sửa lỗi sai
1. What (A)will happen to (B)the environment (C)if the pollution (D)go=>goes on?
->
2. If people (A)don't stop polluting the rivers , there (B)was=>will be a (C)shortage of fresh water (D)in a few decades
->…
3. Her brother (A)left home (B)in 2008, and we (C)didn't see=>haven't seen him since (D)then
->…
4. If you (A)aren't=>don't try (B)to study harder, you (C)will fail in (D)the coming examination
->…
5. I (A)think we shouldn't (B)traveling=>travel by motorbike (C)so as to keep (D)the environment clean
->…
6. (A)solar energy can (B)be store=>be stored for a number of days, (C)so we can use it (D)on cloudy days, too
->…
7. (A)every day trash is (B)collected and (C)talking=>taken to the (D)garbage dump
->…
IV/ chọn và sửa lỗi sai
1. What (A)will happen to (B)the environment (C)if the pollution (D)go on?
->goes
2. If people (A)don't stop polluting the rivers , there (B)was a (C)shortage of fresh water (D)in a few decades
->will be
3. Her brother (A)left home (B)in 2008, and we (C)didn't see him since (D)then
->…haven't seen
4. If you (A)aren't try (B)to study harder, you (C)will fail in (D)the coming examination
->…don't try
5. I (A)think we shouldn't (B)traveling by motorbike (C)so as to keep (D)the environment clean
->…travel
6. (A)solar energy can (B)be store for a number of days, (C)so we can use it (D)on cloudy days, too
->…be stored
7. (A)every day trash is (B)collected and (C)talking to the (D)garbage dump
->…taken
1. When you lie, some gestures can show you are lying (give)
=> Some gestures can...show you are lying... when you lie
2. Is it true that you haven't found a job yet ?( looking)
=> Are you still.looking for a.. job?
3. I tried to explain the problem to you but you refused to listen ( let)
=> You wouldn't ..let me to explain the problem. to you
4. You can talk all you want, but I will never believe you( made)
=> Nothing you say will .....make me believe... you
5. When I heard the news, I fainted (passed)
=> I ....passed out when hearing... the news
6. I'd love to be really intelligent ! ( only)
=> If ...only I were... really intelligent !
1. You (be)will be late for school if you (not go)don't go now
2. I( help)will help you with the homework if i (be)am free
3. There (be)will be big floods every year if we (cut)cut down too many trees in the forests
4. If we (not stop)don't stop littering, the environment (become)will become more and more polluted
5. She (pay)will pay 50,000 dong if she (use)uses 2 energy-saving bulbs
6. If i (see)see him, i (give)will give him a lift
7. The table (will collapse)will collapse if you (stand)stand on it
8. If he (eat)eats all that, he (be)will be ill
9. What (happen)happen if the pollution (go)goes on?
10. If the work (not finish)doesn't finish on time, we (fire)will fire you
11. If we (not stop)don't stop smoking, you (die)will die soon
12. The electricity will be cut off if you (not pay)don't pay the bill within 2 days
13. If it ( not rain)won't rain tomorrow, we (come)will come to visit them
If you believe in yourself, you won't be stopped. ( em ko chắc lắm ạ)