--- Why didn’t Mr. Smith arrive on time for the meeting?--- He must have been ________ on his way here in the traffic jam. 
#68404
A
held up
B
put up
C
taken up
D
given up
推荐题目
We had to _________ the engine piece by piece for transport.
#73431
A
take up
B
take out
C
take off
D
take apart
You’d better have the second-hand car ______ before you sell it.
#68070
A
repaired
B
repair
C
in repair
D
repairing
——Watch! ——I ____ but ____ I ____ anything unusual.
#82021
A
watched; have watched
B
have watched; am not seeing
C
was watching; wasn’t seeing
D
am watching; don’t see