After her son’s death, the old lady _____ sit at the window, deep in thought.
#87844
A
would
B
should
C
could
D
might
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The officer insisted the young girl______a thief and ordered she______free.
#87505
A
was not;be set
B
should not be;be set
C
was not;was to be set
D
was not;set
We __________ so tired. We've only been to a party.
#90010
A
mustn't have felt
B
wouldn't have felt
C
shouldn't have felt
D
couldn't have felt
Often, when he ______ something that ______ him, he wasted his time drawing some little pictures. 
#89280
A
should be doing; gave
B
should have been doing; was given
C
should do; was given
D
should have been doing; had given
Online paper-checking requires that more attention _______.
#89641
A
be paid to spelling
B
to be paid to spelling
C
should pay to spelling
D
and spelling be paid to