—I wonder what makes you a successful manager.—I ________ as a waiter for five years，which contributes a lot to my today’s work.
#99873
A
serve
B
have served
C
had served
D
served
推荐题目
In the front of the hall _______ a group of pupils, who were listening to the lecture attentively.
#99268
A
were sitting
B
sat
C
sit
D
was sitting
—Hi, Jack! When did you arrive in Berlin?—Last weekend .I a different culture since then.
#101417
A
was experiencing
B
will be experiencing
C
have been experiencing
D
had been experiencing
Why did you just sit and watch? You _______ me.
#104478
A
could help
B
should help
C
could have helped
D
must have helped
—The window is dirty.—I know. It ______ for weeks.
#102943
A
hasn’t cleaned
B
didn’t clean
C
wasn’t cleaned
D
hasn’t been cleaned
Let’s keep to the point or we ______ any decisions.
#104991
A
will never reach
B
have never reached
C
never reach
D
never reached