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：
