-What is your math teacher like, Nick?-She is very kind _________ she looks a little serious. 
#77143
A
although
B
if
C
so
D
until
推荐题目
-Must we leave now?-No, we ________. We still have two more hours.
#77765
A
can’t
B
mustn’t
C
needn’t
D
shouldn’t
The teacher says we _____read ______ comic books.
#76754
A
mustn’t, much too
B
can’t, much too
C
may not, too many
D
shouldn’t, too many