题目内容
----Martin Murray used to be afraid of ______ alone.
----But now he realizes that his mother is always there for him.
----But now he realizes that his mother is always there for him.
A.is | B.was | C.be | D.being |
D
试题分析: 句意:马丁.穆雷过去常常害怕孤独。但现在他意识到他的妈妈一直在那儿陪他。used to过去常常做某事,be afraid of 害怕,后接动名词,故选D

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