Tony ________ full marks, but he was so careless as to make a spelling mistake.
#86660
A
could have gained
B
can have gained
C
must have gained
D
must gain
推荐题目
-- It’s many years since I saw you last; I _____ you at all.--- I wouldn’t have, either, if someone ______ you by the name.
#87150
A
didn’t recognize; hadn’t called
B
didn’t recognize; didn’t call
C
haven’t recognized; didn’t call
D
recognized; had called
 It was Mr. Zhang that helped us out of the trouble. Without his help, we ______ it so easily.
#86786
A
can’t manage
B
mustn’t have managed
C
couldn’t have managed
D
couldn’t manage
John ___ be a basketball player.He’s much too short.
#89019
A
may
B
mustn’t
C
can't
D
should
It’s a shame ______ able to give them any advice.  
#87215
A
not to have been
B
to have not been
C
to have been not
D
to not have been