问题

Do I have to sell my old computer It almost stops working.— You ________ do so, it only needs ________. Something has gone wrong with it.
A:mustn’t; to repair
B:can’t; repairing
C:needn’t; repairing
D:may not; to repair;
B:can’t; repairing
C:needn’t; repairing
D:may not; to repair;
正确答案是:
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