The fire spread through the building very quickly,but everyone____get out.
A. may
B. was able to
C. could
D. would
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____you be happy every day and succeed in your work!
A. May
B. Must
C. could
D. would
____you rather live in a town or in the country?
A. may
B. shall
C. could
D. Would
There's nothing to do , so I___as well go to bed.
A. may
B. was able
C. can
D. will
You___leave your key at the reception desk.
A. may
B. was able to
C. should
D. would