—Where ____ Margaret have put the empty bottles?—She ______ them away. They must be somewhere.
#89520
A
can; can’t have thrown
B
must; needn’t
C
must; must have thrown
D
can; must throw
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It is demanded that the plan _____ out as soon as possible. 
#87223
A
must be carried
B
is to carry out
C
carried
D
be carried
It was very kind of you to do the washing up, but you _______ it.
#89688
A
mustn't have done
B
wouldn't have done
C
mightn't have done
D
didn't have to do 
—Where have you been?—I         in the heavy traffic. Otherwise I         here earlier.
#87449
A
got stuck; would have come
B
got stuck; was
C
have got stuck; would have come
D
Had got stuck; would come