Question

【题目】— Do you know this computer?
— Yes. Last Monday.
A.when he buys
B.when will he buy
C.when he bought
D.when did he buy

Answer 1

【答案】C
【解析】句意：—你知道他何时买了这台电脑吗? —是的。上周一。在宾语从句中只能用陈述句语序，不能用疑问句语序。根据Last Monday可知该用一般过去时。所以选C。