1. Choose the best answers toplete the sentences.1. If you ______ your best, you will be...

1. Choose the best answers toplete the sentences.

1. If you ______ your best, you will be successful.

A. try                 B. will try                     C. tried               D. would try

2. If there _____ more than 24 hours a day, I would have more time to sleep.

A. is                   B. will be                     C. were              D. would be

3. If I were rich, I ______ a lot of books and clothes for poor children.

A. buy               B. will buy                   C. bought           D. would buy

4. If it is sunny tomorrow, we ______ on an ecotour.

A. go                 B. will go                     C. went              D. would go

5. If my grandparents ______ younger, they would travel around the world.

A. is                   B. has been                  C. were              D. be

6. You will be ill if you ______ working long hours every day.

A. keep              B. will keep                 C. kept               D. would keep

7. My friend would be disappointed if he ______ the truth.

A. knows           B. will know                C. knew             D. would know

8. My grandmother ______ my uncle in Ho Chi Minh City if she were in better health.

A. visits             B. will visit                  C. visited           D. would visit

9. Many lives ______ saved if doctors find effective treatments for the disease.

A. are                 B. will be                     C. were              D. would be

10. We would play football if there ______ a stadium in the town.

A. is                   B. was                          C. has been        D. to be