Tony ____ for the company as an engineer for two decades. Now he teachesmechanics m Peking University.
#100416
A
has worked
B
worked
C
is working
D
had worked
推荐题目
If a computer crashes，you will lose the file you _____ on if you don’t save it early enough.
#103552
A
are working
B
work
C
will work
D
worked
.Its tiny eyes_____the cabbage,_____the creature’s interest in the vegetable.
#103497
A
are fixed on,show
B
are fixed upon,showing
C
fix on,showing
D
fix upon,showing
—May I speak to your manager at 4：00 this afternoon? —Sorry, sir. He ________ to a meeting soon.
#99378
A
would go
B
has gone
C
will have gone
D
is going
Tom, you play the violin so well. But I ______ you can play the violin.
#99235
A
didn’t know
B
don’t know
C
hadn’t known
D
haven’t known
The two friends ______on the Internet for three hours, and they would go on till the next morning.
#101929
A
have been chatting
B
had been chatting
C
were chatting
D
had chatted