Lei Feng was always thinking of ------- he could help others

问题描述:

Lei Feng was always thinking of _______ he could help others.
A.that B.how C.whom D.which
为什么不能选A?
1个回答 分类:英语 2014-10-21

问题解答:

我来补答
B
介词of后不能接that.
 
 
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