The policeman came up to the house, whose door was open, _____ there for a while, and went in.
#100895
A
to stand
B
standing
C
stood
D
stand
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Police are searching for an escaped criminal who is reported to _____ since he broke away from the prison．
#103031
A
have been missing
B
have lost
C
be missing
D
get lost
This kind of glasses made by experienced craftsmen _________ comfortably.
#102675
A
is worn
B
wears
C
wearing
D
are worn
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
The country life he was used to________greatly since 2002.
#99163
A
change
B
has changed
C
changing
D
have changed
－When will the expert come and give the lecture on economic development －Not until our program ____by the government
#100368
A
approves
B
is to approve
C
will be approved
D
has been approved