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EX1: 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. giúp em ạ