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.

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) __will pass______________  the exam.

4.If people really cared about the environment, they ( not dump ) __ _____wouldn't dump_________ waste into the lake.

5. If there was/ WERE no fresh water in the world, what (happen)

would happen_________?

6.If you (be) __were_______ the president, what would you do to help the environment ?

7.They get sick so often.If they exercised more, they (be) __would be___________ heathier.

8.If I (have) ___had_____ one million US dollars , I would build more parks in our city.