Some people who don’t like to talk much are not necessarily shy;they        just be quiet people.
#90487
A
must
B
may
C
should
D
would
推荐题目
—— Must I take a bus ? —— No, you____. You can walk from here. 
#89947
A
must not
B
don’t
C
don’t have to
D
had better not to
But for your timely help, I ________ the project as scheduled.
#87395
A
couldn’t complete
B
couldn’t have finished
C
can’t have finished
D
can’t finish