-------- The window is dirty. --------- I know. It __________ for weeks.
#101585
A
hasn’t cleaned
B
didn’t clean
C
wasn’t cleaned
D
hasn’t been cleaned
推荐题目
There was a lot of fun at yesterday’s party. You _______, but why didn’t you? 
#101093
A
should come
B
may come
C
ought to have come
D
may have come
The book __, it’s a best-seller. 
#103594
A
sell well
B
is sold well
C
has sold well
D
sells well
— Have you heard me?— I’m sorry, I        you        to me.
#100031
A
don’t know, are speaking
B
didn’t know, were speaking
C
don’t know, were speaking
D
didn’t know, are speaking