.What a pity! I missed meeting my boss at the airport because my car was ______ in the traffic jam.
#4750
A
broken up
B
kept away
C
held up
D
kept up
推荐题目
They use computers to keep the traffic _______ smoothly. 
#5026
A
being run
B
run
C
to run
D
running
.Walking alone in the deserted village, John was scared. He thought he ______Tom to go with him.
#4735
A
might have asked
B
should ask
C
must have asked
D
should have asked
The little boy has never been to Beijing, ________he ?
#4546
A
haven’t
B
don’t
C
has
D
Does
Many old Chinese people have the concept of ________ some money for their future use.
#4787
A
picking up
B
setting aside
C
putting off
D
setting up