It was playing computer games that cost the boy plenty of time he ____ doing his lessons.
#89110
A
might have spent
B
ought to have spent
C
must have spent
D
could have spent
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The victims of the accident demanded that the case ______  at once.
#87680
A
would be looked into
B
should look into
C
be looked into
D
look into
The professor gave orders that the test ____before 5:30.
#86937
A
be finished
B
will finish
C
will be finished
D
shall finish