问题补充:
.He said he experiments those days.
A. was doing
B. had been doing
C. has been doing
D. is doing
答案:
A. was doing
(答案→)B. had been doing
C. has been doing
D. is doing
解析:可联系答.案.网客服索取。
时间:2020-04-28 14:19:56
.He said he experiments those days.
A. was doing
B. had been doing
C. has been doing
D. is doing
A. was doing
(答案→)B. had been doing
C. has been doing
D. is doing
解析:可联系答.案.网客服索取。
What do you think at this time last night?A. has he doneB. he has doneC. was he doingD. h
2019-07-27
--Do you know where Mr Brown is?---He Beijing for two days.A. has been toB. has gone toC.
2023-04-25