—I wonder if you could go with me to the supermarket.—Sorry. I _______ my experiment report all the morning and haven’t finished yet.
#101229
A
write   
B
was writing
C
have written
D
have been writing
推荐题目
Father finally came back home, which I ___ forward it.
#103583
A
had been looking
B
have been looking
C
looked
D
have looked
It was the first time that I ___________ the night face to face. 
#101477
A
had seen
B
have seen
C
see
D
seeing
---Alice, why aren’t you at work today?---I ________a day off.
#101265
A
have given
B
had been given    
C
gave
D
was given