—Why didn’t Susan come to school? —I don’t know. She____ ill.
#87988
A
could be
B
may have been
C
might
D
must have been
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 I have lost one of my gloves. I _____ it somewhere. 
#89289
A
must drop
B
must have dropped
C
must be dropping
D
must have been dropped
David did not regret saying what he did but felt that he     it differently.
#87310
A
could express
B
would express
C
could have expressed
D
must have expressed
You are late. If you ____ a few minutes earlier, you ____ him. 
#86905
A
came; would meet
B
had come; would have met
C
come; will meet
D
had come; would met