It is difficult to tell exactly ____ the saying began, but it is probable that it was in the theater or movie industry.
#79080
A
where
B
when
C
why
D
that
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 –Mr Li, I found a watch on the playground.-You should try to find out ______.
#36381
A
whose is the watch
B
who is the owner of the watch
C
whom does the watch belong to
D
who the owner of the watch is
 --Could you tell me ___________?   –I don’t know. Maybe at 8:00pm.
#37556
A
when will the meeting start
B
when the meeting will start
C
the meeting will start when
D
the meeting when will start
One should stick to ______one has begun.
#79024
A
what
B
where
C
whatever
D
no matter what