— Has Jack finished his homework yet?

来源：学生作业帮编辑：作业帮分类：英语作业时间：2024/05/20 02:19:21

— Has Jack finished his homework yet?
— I have no idea；he ＿＿it this morning.

A．was doing

B．had been doing

C．has done

D．did

A

题干没有构成“过去的过去”，不可选B。如选C、D则表示动作已完成，与have no idea相矛盾。过去进行时表示过去某段时间或某一时刻正在进行的动作，不涉及结果，正好附合题干语境。

— Has Jack finished his homework yet? 18.Has Jack finished his homework yet? Has Jack finished his homework yet? ---Has Jack finished his homework yet? Has Jack finished his homework yet?I've no idea, The has finished his homework yet改错 --has jack finished his homework yet?--i've no idea,but he__ Jack has just finished his homework? jack has already finished his homework .否定句 jack------------ He has finished his homework yet挑错并改正 —Has Tommy finished his homework yet?—I have no idea; he --- — Has Sam finished his homework today?