I didn′ t understand ____________. so I raised my hand to ask.A.what my teacher

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问题 I didn′ t understand ____________. so I raised my hand to ask.

选项 A.what my teacher says
B.what does my teacher say
C.what my teacher said
D.what did my teacher say

答案C

解析考查宾语从句的语序及时态。句意为“我不理解老师说的话,所以我举手提问”。本题前面的分句中含有what引导的宾语从句,宾语从句的语序一律用陈述句语序。排除B、D。因为主句是过去时态,所以从句也要用过去时态的某种形式。故选C。
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