1. If he (study) ____studies_____________ harder, he can pass an exam. 2. She may be late if she (not hurry) __hurries______________. 3.If you study harder, you (pass) ________________ the exam. 4.If people really cared about the environment, they ( not dump ) __ ______________ waste into the lake. 5. If there was/ WERE no fresh water in the world, what (happen) _________? 6.If you (be) _________ the president, what would you do to help the environment ? 7.They get sick so often.If they exercised more, they (be) _____________ heathier. 8.If I (have) ________ one million US dollars , I would build more parks in our city. -> 3 LOAI: Type 1: ở tương lai : If (HTĐ), Will V/ can V/ May V/ … TYPE 2: Trái với Hiện tại : If (qkđ), would V Type 3: Trái với QK: If ( Had PP), would have PP 9. Four countries ____ __________ (visit) by John so far. 10. London ______________ (have) a population of eight million people. 11. Vietnam’s Independence Day __ ______________ (celebrate) on September 02nd . 12. We _ _____________ (visit) Sydney Opera House for several times. 13. Some activities ________ (prepare) to celebrate the lunar new year now. 14. When I came to the stadium, the match (start) _ ___ 15. Before she (listen) _ ________ to music, she (do)__ _____ homework. 16. Last night, Peter (go) _ ___________________ to the supermarket before he (go) _________ _________________ home. 17. Most students (leave) __ ____________________ before the volcano (erupt) ________ _______________. 18. I (find) _________________ my pen after I (buy)__________ a new one. 19. Food and medical supplies (deliver)…… ……….yesterday afternoon. 20. In the future, natural diasters (predict)… … …………………… accurately with the help of technology. 21.Three cats (rescue) … ……………………….by the volunteers last Sunday. 22. Two houses (build) …… …………………….in the city every year. 23. The Earth (hold)… ………………………. by the gravity of the sun and orbits around it.

Đỗ Hồng Vương

Cách làm:

1. Điền dạng nguyên thể của động từ trong ngoặc vào chỗ trống.
2. Chọn loại mệnh đề điều kiện (Type 1, 2, 3) phù hợp với từ khóa "If".
3. Đưa ra câu trả lời chính xác dựa trên ngữ cảnh và kiểu mệnh đề điều kiện.

Câu trả lời cho câu hỏi trên:

1. If he studies harder, he can pass an exam.
2. She may be late if she doesn't hurry.
3. If you study harder, you will pass the exam.
4. If people really cared about the environment, they would not dump waste into the lake.
5. If there were no fresh water in the world, what would happen?
6. If you were the president, what would you do to help the environment?
7. They get sick so often. If they exercised more, they would be healthier.
8. If I had one million US dollars, I would build more parks in our city.
9. Four countries have been visited by John so far.
10. London has a population of eight million people.
11. Vietnam's Independence Day is celebrated on September 02nd.
12. We have visited Sydney Opera House for several times.
13. Some activities are being prepared to celebrate the lunar new year now.
14. When I came to the stadium, the match had already started.
15. Before she listened to music, she had done her homework.
16. Last night, Peter went to the supermarket before he went home.
17. Most students had left before the volcano erupted.
18. I found my pen after I bought a new one.
19. Food and medical supplies were delivered yesterday afternoon.
20. In the future, natural disasters will be predicted accurately with the help of technology.
21. Three cats were rescued by the volunteers last Sunday.
22. Two houses are built in the city every year.
23. The Earth is held by the gravity of the sun and orbits around it.