--Don't be so disappointed.I’m sure that you can do better in the next exam. --Yes, but I ____ this time.
#89035
A
should be more careful
B
could be more careful
C
should have been more careful
D
must have been more carefully
推荐题目
It’s required that the students______ mobile phones in their school, so seldom ______ them using one. 
#86714
A
not use; will you see
B
should not use; you will see
C
don’t use; will you see
D
would not use; you will see
 Watch out for these animals! They could be terrified ______ a sudden loud noise.
#87225
A
being there
B
should there be
C
there was
D
there have been
I was too busy at that time, ________ I would have given you a hand.
#88975
A
even though
B
so
C
otherwise
D
nevertheless