The policeman's attention was suddenly caught by a small box which ______ placed under the Minister's car.
#104010
A
has been
B
was being
C
had been
D
would be
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 As soon as he comes back, I’ll tell him when _______ and see him.
#104132
A
you will come
B
will you come
C
you come
D
do you come
Tom, you play the violin so well. But I ______ you can play the violin.
#99235
A
didn’t know
B
don’t know
C
hadn’t known
D
haven’t known