Ladies and gentlemen,please fasten your seat belts.The plane       .
#102007
A
takes off
B
took off
C
is taking off
D
has taken off
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—Where is Mr Smith?—He   in prison for more than two months.
#102721
A
has been
B
has been sent
C
has been thrown
D
has been put
Would you please keep silent? The news that the milk contains a harmful chemical______ and I want to listen.
#101446
A
has been broadcast
B
is broadcast
C
is being broadcast
D
is broadcasting
Much to my anger, the camera I         didn’t work again.
#101148
A
repaired
B
had repaired
C
had had repaired
D
was repaired