3．After a heated discussion，we still couldn't decide _______ we should do to help the old．（　　）
A．whatB．thatC．whenD．why

分析 在經(jīng)過了激烈的討論之后，我們還不能決定應(yīng)該怎么去幫助這位老人．

解答 答案：A
decide后面是賓語從句，從句中do缺少賓語，所以用what．

點評 考查名詞性從句時，要分析從句句子成分，如果缺少主語、賓語、表語，一般用what．

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