The fire spread through the hotel very quickly, but everyone __________ get out. 
#89474
A
had to
B
would
C
could
D
was able to
推荐题目
Teachers suggested parents        their children under 12 to ride bicycles to school for safety.
#87502
A
shouldn’t allow
B
don’t allow
C
mustn’t allow
D
couldn’t allow
There were already five people in the car but they managed to take me as well . It ____ a comfortable journey . 
#89751
A
can''t e
B
shouldn''t be
C
mustn''t have been
D
couldn''t have been
I ______ Peter with his work, but I had a lot of things to do myself.
#86588
A
must have helped
B
should have helped
C
needn’t have helped
D
can’t have helped