题目内容

Why not ____ help when you were in trouble?
A．you ask forB．ask forC．asking forD．to ask
B

试题分析：固定句式，Why not do sth为什么不做某事。故选B，当你有麻烦时，为什么不请求帮助？
点评：固定句式的考查也是英语考查的一个重点，熟记这些句式可以减少答题中的分析判断时间，所以平时加强句式记忆也是学好英语的关键环节。
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