问题补充:
What you at this time yesterday?
A. did ; do
B. is; doing
C. were; doing
D. are ; doing
答案:
A. did ; do
B. is; doing
(答案→)C. were; doing
D. are ; doing
解析:at this time yesterday是过去进行时的标志词。
时间:2024-04-14 10:42:17
What you at this time yesterday?
A. did ; do
B. is; doing
C. were; doing
D. are ; doing
A. did ; do
B. is; doing
(答案→)C. were; doing
D. are ; doing
解析:at this time yesterday是过去进行时的标志词。