问题补充：
The clothes need , but you do that by yourselves.
A. washing; needn’t
B. washing; needn’t to
C. to wash; don’t need
D. to wash; don’t need to
答案：
(答案→)A. washing; needn’t
B. washing; needn’t to
C. to wash; don’t need
D. to wash; don’t need to
解析：句意：衣服需要洗，但是你不必自己去洗。need doing =need to be done，排除C、D；情态动词need的否定形式是needn’t，故选择A。
