Exercise III: Cho dạng đúng của động từ trong ngoặc.
1. If we meet at 9:30, we (have) _________________plenty of time.
2. If you (find) _________________ a skeleton in the cellar, don't mention it to anyone.
3. The zookeeper would have punished her with a fine if she ( feed) _________________ the animals..
4. If you pass your examination, we (have) _________________a celebration.
5. Lisa would find the milk if she (look) _________________ for it in the fridge.
6. What (happen) _________________if I press this button?
7. The door will be unlocked if you (press)_________________ the green button.
8. I should have voted for her if I (have) _________________ a vote then.
9. If you go to Paris, where you (stay) _________________?
10. If you (swim) _________________ in this lake, you'll shiver from cold.
11. If someone offered to buy you one of those rings, which you (choose) _________________?
12. The flight may be cancelled if the fog (get) _________________thick.
13. If the milkman (come) _________________, tell him to leave two pints.
14. I (call) _________________ the office if I were you.
15. Someone (sit) _________________on your glasses if you leave them there.
16. You would hear my explanation if you (not talk) _________________so much.
17. What I (do) _________________if I hear the burglar alarm?
18. If you (read) _________________the instructions carefully, you wouldn't have answered the wrong question.
19. If Mel (ask) _________________ her teacher, he'd have answered her questions.
20. I would repair the roof myself if I (have) _________________a long ladder.