Criticism and self-criticism are necessary __________they may help us to find out and correct our mistakes.A．by that? ?B．at thatC．on that? ?D．in that
Criticism and self-criticism are necessary __________they may help us to find out and correct our mistakes.
A．by that? ?
B．at that
C．on that? ?
D．in that
B．at that
C．on that? ?
D．in that
参考解析
解析：考查原因状语从句。句意为“批评与自我批评是必要的． __________它们可以帮助我们发现并改正错误”。in that意思是“因为，由于”，用于引导原因状语从句，故选D。
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