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B. may C. should D. would 4. The biggest problem for most plants, which ________ just get up and run away when threatened, is that animals like to eat them. A. shan’t B. can’t C. needn’t D. mustn’t 5. — Good ’ve got an appointment with Miss Smith in the Personnel Department. — Ah, good ________ be . A. might B. must C. would D. can 6. So you have to nice it ________ if you ________ a bit longer! A. would be; could stay B. is; can stay C. should be; stay D. was; are able to stay 7. What a pity! Considering his ability and experience, he ________ better. A. need have done B. must have done C. can have done D. might have done 8. — What sort of house do you want to have? Something big? — Well, it ________ be big— that’s not important. A. mustn’t B. needn’t C. can’t D. won’t 9. When he was there, he ________ go to that coffee shop at the corner after work every day. A. would B. should C. need D. might 10. As to the question of whether we will sell our house or who we shall sell the house to, you ________ have an answer by tomorrow. A. will B. shall C. could D. must 11. — Hi, Johnson, any idea where Susan is? — It’s cla