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:may not; to repair
C:needn’t; repairing
D:can’t; repairing;
B:may not; to repair
C:needn’t; repairing
D:can’t; repairing;
正确答案是：
