1. Put the verbs in brackets into the correct 

 1.if he (study)             harder , he can pass an 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 he (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

Choose the best answer to complete the sentences.

1.If there________ no gravity, you do not weigh anything (be/is/were/was)

2.If you________ a report, you'll have to prepare it carefully.(do/did/will do/would do)

3.If Hoa_________ home, she'll tell her parents about her result.(call/ calls/calling/will call)

4.If the local authorities ___________ littering, the environment will become bad. (don't prevent/not prevent/will not prevent/ didn't prevent)

5.If I___________ an astronaut, I would observe the Earth from the moon. (be/is/were/was)

6.I__________ to Lan's birthday party if she invites me. (go/will go/ went/gone)

7.If solar energy is used widely in the future, the environment ____________ .(will be protected/ will be protect/would be protected/would be protect)

8.If the teacher_________ us some homework, we have to stay home and do it. (gives/give/ will give/gave)

9.Their parents would be happy if they ________ the final exam. (passed/pass/will passed/would pass)

10.Please let me know if the teacher___________ .(will come/comes/coming/come)

11. If you______ to pass the exam, you should try harder. (wanted/want/will want/wants)

12.If I had time, I __________ the poor children with studying. (helped/help/will help/would help)

13.If I saw a UFO, I _____________ surprised. (not be/would not be/were not/ won't be)

14. If people destroy the rainforest, rare animals ____________. (would be killed/will kill/ will be killed/ would kill)

15.They will pass the final exam if they _________ hard. (will study/ studied/study/would study)

1.     If/ you/ don’t/ study/ hard/,/ you/ don’t/ pass/ final/ exam

2.     they / come/ will/ tomorrow?

3.     rains/ it/ he/ is/ home/ will/ if/ stay.

4.     I’m/ she /able/ afraid/ to/ be/ come/ to/ party/ the/ will not.

5.     You/ look/ tired,/ so/ I/ bring/ you/ will/ something/ eat.

6.     Will/ marry/ me/ you ?

7.     Come/ I/ will/ come/ your/ tomorrow/ house.

8.     days./ finish / my/ will/ I/ report/ in/ two.

9.     send/ the/ postcard./ won’t/ we/ to/ them

10.   family/ travel/ in / HCM City/ will/ My/  next week.

chia động từ :

1.we can save natural resources if we (use) solar energy

2.he'd have a lot of friends if he (not be) so selfish

3.if it doesn't rain soon,the crop (lose)

4.if these (not be) electricity,people (can't) use house hold appdiances

5.unless he (study) hard ,he will pass the final exam

6.if the sun(stop) shining ,what (happen) to our planet?

7.what you (wish)if a fairy (give) you three wishes?

8.if i (know) his telephone number,i'd give it to you

9.if i had a type writes i (type)it myself

10.he might get fat if he (stop)smoking

1. Factories don’t dump waste into rivers if the government (fine) _________ them heavily. 2. If he (study) ________________ harder, he can pass an exam. 3. She may be late if she (not hurry) ________________. 4. If you study harder, you (pass) ________________ the exam. 5. If you are kind to me, I (be) _______________ good to you. 6. If he (give) _______________ up smoking, as his doctor orders, he will be soon well again. 7. You (not pass) _______________ your driving test unless you drive more carefully. 8. He’ll be ill if he (not stop) ________________ worrying so much. 9. We’ll go to the beach tomorrow if it (be) ________________ nice.III. Put the verbs i 10. If I were you, I (look) ________________ for a new place to live.

1. Factories don’t dump waste into rivers if the government (fine) _________ them heavily. 2. If he (study) ________________ harder, he can pass an exam. 3. She may be late if she (not hurry) ________________. 4. If you study harder, you (pass) ________________ the exam. 5. If you are kind to me, I (be) _______________ good to you. 6. If he (give) _______________ up smoking, as his doctor orders, he will be soon well again. 7. You (not pass) _______________ your driving test unless you drive more carefully. 8. He’ll be ill if he (not stop) ________________ worrying so much. 9. We’ll go to the beach tomorrow if it (be) ________________ nice.III. Put the verbs i 10. If I were you, I (look) ________________ for a new place to live.

Supply the correct verb form ; 1 she asked me whether I ( buy ) ..................... that car 2 she asked him where he ( be ) ........................... from 3 they said that they ( sell ) ....................... their house 4 i asked them if they ( pass ) ...................... the final exam 5 i asked him if he ( can ) ..................... help me 6 she said to me that she ( sell ) .......................... that car the following day 7 he asked me where i ( go ) ....................... the previous day 8 the teacher asked her why se ( not do ) ....................... the test ? 9 i asked her if she ( pass ) .......................... the final exam 10 they asked him if he ( must ) .................... go then