--Hi, Tracy, you look tired.--I am tired. I__________ the living-room all day.
#104804
A
painted
B
have been painting
C
had painted
D
have painted
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Edward, you play so well. But I ________ you played the piano.
#104527
A
didn’t know
B
hadn’t known
C
don’t know
D
haven’t known
---Will you please repeat your idea? ---Sure. But I don’t think that you ________ attention.
#101956
A
paid
B
pay
C
are paying
D
were paying
—Will you please repeat your idea?—Certainly. But I think it convinced you ________ your attention.
#101250
A
didn’t pay
B
aren’t paying
C
don’t pay
D
weren’t paying
—Did Betty go shopping with you yesterday? —Even if she _____ a lot of studying, she would have preferred staying home to going shopping．
#103095
A
didn’t have
B
shouldn’t have
C
hadn’t had
D
hasn’t had
The country life he was accustomed to________ greatly since 1992.
#101373
A
has changed
B
change
C
changing
D
have changed