I _______ to help you but I was not able to spare any time.I _______ a paper last night and I'll have to finish it today.
#104536
A
wanted; have been writing
B
have wanted;wrote
C
had wanted; wrote
D
had wanted;was writing
推荐题目
Computers          in offices and homes since 1970s.
#101154
A
have been used
B
had been used
C
was
D
has been used
The thief______ when he was stealing a wallet from a woman. 
#104328
A
happenedtonotice
B
wastakenplacetonotice
C
washappenedtobenoticed
D
happenedtobenoticed
Traditional folk arts of Tianjin like paper cutting_______at the culture show of the 2010 Shanghai World Expo.
#103757
A
are exhibiting
B
is exhibiting
C
are being exhibited
D
is being exhibited