How he _______ get out of the prison ______ a mystery.
#87966
A
could; is
B
can; is
C
was able to; remains
D
able to; remain
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If Peter had not hurt his leg, he ______ the important meeting last week.
#86505
A
will attend
B
attended
C
would have attended
D
would attend
If you had told me in advance, I ________ him at the airport. 
#87805
A
would meet
B
will meet
C
would have met
D
will have meet
There was plenty of time.He       .
#89668
A
couldn’t have hurried
B
mustn’t hurry
C
needn’t have hurried
D
can’t have hurried