题目

用以下情态动词的正确形式填空should，may，used to，need，mustn't （1） — I leave now?—No，you. You haven't finished your homework yet. （2） The bike to be repaired.（= The bike repairing.）（3） I be a heavy smoker. （4） You listen to the doctor's advice if you want to recover soon. 答案：【1】May【2】mustn't 【1】Needs【2】needs 【1】used【2】to 【1】should

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