They could have attended the awarding ceremony,but their flight      due to the bad weather.
#99062
A
was delayed
B
had been delayed
C
has delayed
D
was delaying
推荐题目
 You have to keep alert when you are in the supermarket; otherwise, you might _____ what you actually don’t need at all.
#103495
A
be persuaded to buying
B
persuade to buy
C
be persuaded into buying
D
persuade into buying
---Has Tom finished his composition yet?  ---I have no idea, he _____ it this morning.
#103677
A
would write   
B
has written   
C
wrote
D
was writing
—You were not listening;what troubled you?—I         my coming math exam.
#102663
A
am thinking about
B
was thinking about
C
had thought about
D
will think about