________ more careful, his ship would not have sunk. 
#89375
A
If the captain were
B
Had the captain been
C
Should the captain be
D
If the captain would have been
推荐题目
He commanded the students ______ the classroom before he returned.
#86720
A
did not leave
B
leave not
C
not to leave
D
not leaving
 — 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
 — ____ I go out to play now , Mum ?     — No , you ____ . 
#89777
A
May ; shouldn''t
B
Can ; needn''t
C
Must ; can''t
D
May ; must
 Even if you had not been able to see her, you ______ us.
#87200
A
told
B
had told
C
should tell
D
should have told