I （）my homework,I guess I can't join you.A.don't finish B.didn't _英语解答

I （）my homework,I guess I can't join you.
A.don't finish
B.didn't finish
C.haven't finished
D.won't finish
答案是选C,可我选的A,为什么?

人气：218 ℃　时间：2019-11-09 04:19:12

解答

因为现在完成时表示过去发生,对现在有影响
没完成作业的影响是不能加入你们