题目内容

【题目】I didn't understand_______. So I put up my hand to ask.

A.what my teacher says

B.what did my teacher say

C.what my teacher said

D.what does my teacher say

【答案】C

【解析】what引导的疑问句早主句中作宾语,需要用陈述语序;由didn’t判断从句为过去时,故选C项。

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