-You have been quite busy the whole afternoon.-Yes,I_____on my ho_英语解答

-You have been quite busy the whole afternoon.
-Yes,I_____on my homework and it will take another twenty minutes or so
A.have worked
B.am working
C.have been working
D.will be working

人气：352 ℃　时间：2019-12-23 04:41:19

解答

选A
题目考查的是现在完成时
-你整个下午都很忙
-是的我一直在做我的作业,而且明天还要花费20分钟完成它
B是现在进行时不符合题意
C是被动语态,不能说[被作业做]
D是将来时更不符合题意很显然他已经做过作业了.