1. If you (send) __send__ this letter now, she (receive) ___will receive__ it tomorrow.

2. If I (do) __do__ this test, I (improve) __will improve__ my English.

3. If I (find) __find__ your ring, I (give) ___will give___ it back to you.

4. Peggy (go) __will go__ shopping if she ( have) ___has____ time in the afternoon.

5. Simon (go) ___will go___ to London next week if he (get) _gets__ a cheap flight.

6. If her boyfriend (phone/not) __doesn't phone__ today, she (leave) ___will leave___ him.

7. If they (study/not) __don't study__harder, they (pass/not) __won't pass___ the exam.

8. If it (rain) ____rains___ tomorrow, I (have to/ not)____won't have to__ water plants.

9. You (be able/ not) __won't able to_ to sleep if you (watch) __watch__ this scary film.

10. Susan (can/move/not) __can't move__ into the new house if it (be/not) ___isn't__ ready on time.

11. If I (study) __study___ , I (pass) ___will pass____ the exams.

12. If the sun (shine) ___shines___, we (walk) ____will walk____ into town.

13. If he (have) ___has__ a temperature, he (see) ___will see___ the doctor.

14. If my friends (come) __come__, I (be) ___will be__ very happy.

15. IF she (earn) __earns___ a lot of money, she (fly) ___will fly__ to New York.

16. If we (travel) ___travel___ to London, we (visit) __will visit_____ the museums.

17. If you (wear) __wear___ sandals in the mountains, you (slip) ___will slip___ on the rocks.

18. If Rita (forget) __forgets___ her homework, the teacher (give) __will give_ her low mark.

19. If they (go) ____go_____ to the disco, they (listen) ___will listen___ to loud music.

20. If you (wait) ___wait_____ a minute, I (ask) __will ask__ my parents.

Trả lời :

`1,` send - will receive 

`2,` do - will improve

`3,` find - will give

`4,` will go - has

`5,` will go - gets

`6,` doesn't phone - will leave

`7,` don't study - won't pass

`8,` rains - won't have to

`9,` won't able to - watch

`10,` can't move - isn't

`11,` study - will pass

`12,` shines - will walk

`13,` has - will see

`14,` come - will be

`15,` earns - will fly

`16,` travel - will visit

`17,` wear - will slip

`18,` forgets - will give

`19,` go - will listen

`20,` wait - will ask