题目内容

________about her son’s future, the mother has been sleeping very badly these months.
A．ConcerningB．ConcernedC．To concernD．Having concerned
B

试题分析：考查非谓语动词。句意：担心她儿子的未来，那位妈妈几个月以来都没有睡好觉。concerning关于；sb be concerned about...关心/担心......，是固定搭配；相当于sb be worried about...。非谓语的逻辑主语是the mother，故用concerned。故选B。
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