问题补充:
单选题MrGreendidn’tknow______lastnight.A.when does his son come backB.when his son comes backC.when his son come homeD.when his son came home
答案:
D解析动词know后跟的是一个宾语从句,要用陈述句的顺序,故A不正确,主句是过去时,从句要用过去时一种,只有D用的是过去时,故选D。
时间:2019-11-23 22:16:24
单选题MrGreendidn’tknow______lastnight.A.when does his son come backB.when his son comes backC.when his son come homeD.when his son came home
D解析动词know后跟的是一个宾语从句,要用陈述句的顺序,故A不正确,主句是过去时,从句要用过去时一种,只有D用的是过去时,故选D。