This cake is very sweet. You _________ a lot of sugar in it.  
#89247
A
should put
B
could have put
C
might put
D
must have put
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Mother insisted that the child's hands ______ before dinner.
#89461
A
should wash
B
be washed
C
had been washed
D
would be washed
At last he       finish the work ahead of time.
#89655
A
could
B
was able to
C
could have done
D
would have been able to
Regulations require        needs special diets         the cooking manager in advance.
#86500
A
who; informs
B
whom; informed
C
whomever; inform
D
whoever; inform