Question I: put the verbs in brackets into the correct form.( câu điều kiện loại 1)
1. If we( recycle)............ more, we help the earth.
2. factories( not dump).................waster into rivers if the government fine them heavily.
3. if people travel to work by bus, there( be)................. fewer car fumes.
4. we( save) ..............thousands of trees if we don't waste paper.
5. if we use water carefully, more people( have)................fresh water.
6. if the factory( continue)................... dumping poison into the lake, all the fish and other aquatic animals will die.
7. if we recycle mỏe, we( help)...................... the earth.
8. if people ( travel).................... to work by bus, there will be fewer car fumes.
9. we save tthusands of trees if we( not waste).................don't waste paper.
10. factories don't dump waste into rivers if the govenment( fine)................. them heavily.
Question II. put the verbs in brackets into the correct form.
1. if he( study).............. harder, he can passan exam.
2. she may be late if she( not hurry)..................
3. if you study harder, you(pass).................. the exam.
4. if you are kind to me, I(be)..................good to you.
5, if the( give)........................up smoking,as his doctor orders, he will be soon well again.
6. you( not pass).......................your driving test unless you drive more carefully.
7. he'll be ill if he( not stop)..........................worrying so much.
8. we'll go to the beach tomorrow if it( be)......................... nice.
Question III. put the verbs in brackets into the correct form.( câu điều kiện loại 2)
1. if I were you, I(look).................. for a new place to live.
2. if Lan wasn't ill, she( join).................... out tree plating activity.
3. if there were fewer cars on the road, there(be)..................... less pollution.
4. if people really cared about the environment, they( not dump)..................waste into the lake.
5. if there was no fresh water in the world, what(happen).............
6. if you (be).................the president, what would you do to help the environment?
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Chia động từ
1. The environment (not become) …wouldn't become…….. polluted if factories (not dump) ……didn't dump….waste into rivers.
2. Will She (cycle)…be cycling……at 10 AM next Sunday?
3. Many buildings (destroy)…was destroyed.during last storm in Ha Tinh
4. By the time the police came, the thief (leave)had left
5. Don’t forget (turn)…to turn.off the lights before going to bed
III. Viết lại câu
1. Before she went to bed, she had finished her homework.
After ………having finished her homework, she went to bed……………………………………………………………………………….
2. Many people had been homeless before they were rescued by the volunteers.
By the time……many people were rescued by the volunteers, they had been homeless……………………………………………………………………….
3. When I came to the theatre, the film had started.
After………the film had started, I came to the theatre…………………………………………………………………………
4. After the manager had informed us clearly about the job, we started our work.
→ By the time _______we started our work, the manager had informed us clearly about the job_________________________________________________
5. My father had had dinner by the time I came home.
→ Before ________I came home, my father had had dinner____________________________________________________
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