问题
选择题
He asked his father .
A．where it happens
B．what was happen
C．how it happened
D．what happens
答案
答案：C
此题重点考查宾语从句的时态和语序问题，无论哪种句式结构充当宾语从句都要用陈述句语序，从句的时态要和主句的时态保持一致。因主句的谓语动词是过去式从句的谓语动词也要用相应的过去时态。
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