Mary went to the box office at lunch time, but all the tickets ____out. 
#104851
A
would sell
B
had sold
C
have sold
D
was selling
推荐题目
—Why didn’t you buy the gold ring? —I ______ but I didn’t have the money.
#103211
A
would have
B
bought
C
would like to
D
had bought
The country life he was used to ______ greatly since 1998. 
#102492
A
change
B
has changed
C
changing
D
had changed
The committee __ over the problem among themselves for two hours. 
#100019
A
has argued
B
has been arguing
C
have argued
D
have been arguing