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
I _____ in London for many years, but I’ve never regretted my final decision to move back to China.
#100324
A
have lived
B
was living
C
lived
D
had lived
—Do you know where Mary is?—No, I don’t. I ______ her since last Sunday night.
#100839
A
haven’t seen
B
didn’t see
C
won’t see
D
don’t see
—You seem tired, David.—Yes. I _____ all day long and can’t wait to go to bed now.
#102886
A
am working
B
had been working
C
have been working
D
was working
Because the shop _______, the T-shirts are sold at half price.
#104568
A
has closed down
B
closed down
C
is closing down
D
had closed down
My toothache me. I thought it was going away, but it is getting worse now.
#102681
A
kills
B
is killing
C
has killed
D
killed