–Our classroom _________ twice a day. So it is very clean.–It is important for us to do this.
#44640
A
is sweeping
B
is swept
C
sweeps
D
has swept
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 We have discussed the project for two hours. And after a short break, the discussion    .
#44377
A
will carry on
B
will be carried on
C
has carried on
D
were carried on
These kinds of vegetables       only in that shop over there. They_____­ well.
#44675
A
are sold; are sold
B
sell; sell
C
sell; are sold
D
are sold; sell
--What happened in that store?-- A thief _____ by the policeman just now.
#44911
A
is caught
B
caught
C
has caught
D
was caught