Mr. King didn’t know __________ yesterday evening.

A.when does his son came home

B.when his son comes home

C.when his son came home

D.when did his son come home

答案及解析： C

解析：

考查宾语从句。宾语从句的主句谓语动词是过去式，从句应用过去的某种时态，从句应用陈述语序，故答案为C。