问题
选择题
-What was Susan doing at 8 last night?
-She __________ her homework at 8 last night.
A. is doing
B. was doing
C. did
D is did
答案
答案：B
根据问句的句意及时间标志词可知应用过去进行时回答，故选B。
搜题请搜索小程序“爱下问搜题”
-What was Susan doing at 8 last night?
-She __________ her homework at 8 last night.
A. is doing
B. was doing
C. did
D is did
答案：B
根据问句的句意及时间标志词可知应用过去进行时回答，故选B。