问题补充：
It rained last night and the flowers don’t need, so he water the flowers.
A. being watered; doesn’t need to
B. watering; needn’t to
C. to water; needn’t
D. to be watered; doesn’t need to
答案：
A. being watered; doesn’t need to
B. watering; needn’t to
C. to water; needn’t
(答案→)D. to be watered; doesn’t need to
解析：考察动词need用法.sth need doing=sth need to be done,某事需要被做；need可以作为及物动词，后面直接加动词原形；也可以作为行为动词，后面加不定式。结合本题句意可知D正确。句意：昨天晚上下雨了，花没有必要浇水了。所以，他不需要浇花了。
