A
某一时刻正在做的事,进行时.
三单完成时,has
I saw him___his homework when I passed by last night,but I'm not sure whether he__.
I saw him___his homework when I passed by last night,but I'm not sure whether he__.
A.doing;has finished
B.doing;have finished
C.do;has finished
D.do;have finished原因、、、
A.doing;has finished
B.doing;have finished
C.do;has finished
D.do;have finished原因、、、
英语人气：901 ℃时间：2020-02-05 22:38:31
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