—It seems that you know Dr. John very well. —Of course, we   ________     together for five years in the 1990s.
#105078
A
have worked
B
had worked
C
are working
D
worked
推荐题目
—Ouch! You hurt me.—I'm sorry. But I ________ any harm. I ________ to drive a rat out.
#105082
A
don't mean; am trying
B
didn't mean; tried
C
haven't meant; tried
D
didn't mean; was trying
The samples__________in quality but were general acceptable.
#105228
A
varied
B
changed
C
disagreed
D
Exchanged