Have you finished your homework?Yes,I___it half anhour agoA did B_英语解答

Have you finished your homework?Yes,I___it half anhour ago
A did B is done C was done D have been done
我认为是A
请说明理由

人气：254 ℃　时间：2019-08-26 03:50:05

解答

A
...ago用在过去时中
B是一般现在时的被动语气
c是一般过去时的被动语气
d是现在完成时的被动语气