问题补充:
--- Hi, Grandma, why do you look so tired?
--- I’m tired. I the cleaning all morning.
A. did
B. had done
C. have been doing
D. have done
答案:
A. did
B. had done
(答案→)C. have been doing
D. have done
解析:可联系答案网客服索取此答案。
时间:2023-06-28 17:07:23
--- Hi, Grandma, why do you look so tired?
--- I’m tired. I the cleaning all morning.
A. did
B. had done
C. have been doing
D. have done
A. did
B. had done
(答案→)C. have been doing
D. have done
解析:可联系答案网客服索取此答案。