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
. Tom as well as his classmates __________ a song when the teacher came into the classroom.
#103734
A
are singing
B
were singing
C
is singing
D
was singing
In order to find the missing child, the villagers___________ all they can in the past five hours.
#101696
A
have been doing
B
did
C
do
D
had done
It is the first time that I ______ this kind of moon cake.
#101741
A
enjoyed
B
have enjoyed
C
had enjoyed
D
enjoy
He will stop showing off, if no notice _________of him.
#102491
A
is taken
B
will be taken
C
takes
D
has taken
I'm tired out.I ________ all afternoon and I don't seem to have finished anything.
#99060
A
shopped
B
have shopped
C
had shopped
D
have been shopping