Conditional sentences consolidation

CONDITIONAL SENTENCES CONSOLIDATION
I. Put the verbs in the brackets into their correct tenses.
1. If I . (meet) him yesterday, I (not, have) have to wait for him today.
2. If she. (win) the competition, her parents will be very happy.
3. What  you .(do) if you .(be) in my situation?.
4. Unless you sign your name here, the paper sheet .(be) useless.
5. If he  (catch) the 9.00 p.m train yesterday, he  (be) here now.
6. He practises every day. But for that he .(not, play) the piano so well.
7. If I. (be) you, I (ask) friends for help.
8. You must go to school or you (have) no bonus.
9. If we..(know) that you didn’t attend the lecture, we (not, come) there.
10. Complete your home work or you  (not, go) out.
11. We will phone you at once if he (not, be) present at school.
12. A local man helped us. But for that we ..(not, reach) the cave.
13. The flat is small but near our college; otherwise, we (not, choose) it.
14. She’s going to Paris. Come and she her tomorrow; otherwise, you  (not, have) chance to meet to her.
15. One of my friends advised me; otherwise, I ..(make) a mistake.
16. If David did the test more carefully, he ..(pass) the exam.
17. I couldn’t run my company if my uncle (not, help) me.
18. If he had enough money, he ..(buy) a new car.
19. We would never have gone to the mountain if we (watch) the weather forecast.
20. If my aunt .(have) time, she will take e arround the city.
II. Write a conditional sentence from each of the situations.
1. I may see him at the club. I will invite him to my house this weekend.           
If I  .
2. I don’t know Japanese. I can’t apply for a post in this copany. 
If I  .
3. He is worried now because he didn’t revise his lessons. 
If he  . 
4. I didn’t have enough time so I couldn’t explain the new method to you.
If I .
5. I didn’t watch TV last night, so I missed her performance.
If I ..
6. We are tired now because we finished our work late last night.
If we 
7. Paul missed the bus and got to the college late.
If Paul ..
8. Because I don’t live with my mother. I can’t take care of her.
If I ......
9. I can’t buy this house because it is quite expensive.
If this house ....
10. Henry will finish the report. He will go out for a walk.
If Henry ..
11. Give him a ring and he will be willing to help.
If you 
12. The test was too long for the students to complete.
If the test ..
III. Rewrite each of the following sentences 
1. If you don’t start early, you will be catch in the rain. 
 Leave .
2. If Mary doesn’t receive your explanation, she will never forgive you. 
       Unless .
3. Peter gave me a lift; otherwise, I would have been late for work.
       If ...
4. The little boy won’t stop crying unless he sees his parents. 
        If ...
5. If it weren’t for the view, this would be a lovely room. 
        But for ...
6. If we had met Laura, we would have told her the news.
 Had ....
7. The plane counldn’t take off due to the bad wheather.
 If it .
8. If the earth didn’t move round the sun, we wouldn’t have the four seasons.
 Were