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mustn’t 14.—What are you going to order? —Well, I think I try the fried eggs, but I’m not sure yet. ’t ’t 15. —Must I do my homework now, Mum?— . You can do it tomorrow. , you needn’t , you mustn’t , you need , you must to a research, butterflies see more colors than humans. 17.—Is Jim ing by train? —I’m not sure. He drive his car. 二、填空題 (共 6 道,每道 5 分 ) ____ (can / could) read a