The pilot kept calm in the terrible storm, otherwise the accident ______.
#90178
A
couldn’t be prevented
B
mustn’t have prevented
C
wouldn’t have been prevented
D
shouldn’t prevent
推荐题目
If you really want yourself to be in good health, you must___always___so much. 
#89962
A
not; be smoking
B
not; have smoked
C
not; to smoke
D
be not; smoking
 — Mummy, I have broken my train.        一I told you so. You _______ on it.
#89285
A
mustn't have ridden
B
couldn't ride
C
shouldn't have ridden
D
needn't ride
 — Dare you go swimming in the sea ?   — No , ____ . 
#89741
A
I dare not
B
don''t dare
C
don''t dare go
D
I am afraid