--Did Mary come to your birthday party?--No. I __________ her, but she was away on business.
#90012
A
would like to invite
B
would have liked to invite
C
must have invited
D
could invite
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— He hasn’t finished the work yet.— Well, he _____.
#90435
A
ought
B
ought to
C
ought to have
D
ought to have finished
I can’t accept the order he gave yesterday that I _____in my own study!
#87684
A
couldn’t be
B
not be
C
mustn’t be
D
wasn’t
“I know she was in because I heard her radio, but she didn’t open the door.” “She___the bell.” 
#88102
A
may not be hearing
B
may not have heard
C
must not have heard
D
must not be hearing