问题补充:
Tony his homework this morning before he went to school.
A. has done
B. did
C. has done
D. will do
答案:
(答案→)A. has done
B. did
C. has done
D. will do
解析:这题考查时态的用法:时间是before he went to school.说明完成作业是在上学前,用过去完成时,A项had done。正确。
时间:2019-07-17 06:15:02
Tony his homework this morning before he went to school.
A. has done
B. did
C. has done
D. will do
(答案→)A. has done
B. did
C. has done
D. will do
解析:这题考查时态的用法:时间是before he went to school.说明完成作业是在上学前,用过去完成时,A项had done。正确。