In my opinion, ______ seems easy at first often turns out to be difficult in the end.

A. it B. what C. that D. which

B

【解析】

試題分析:考查主語從句。句意:在我看來,剛開始看起來很簡單的事情最后都會變得非常的困難。What引導(dǎo)主語從句,在從句中做主語,故選B項。

考點 : 考查主語從句

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