—What do you think of John?—He’s a good boy, but he ______ be really stubborn at times.
#62697
A
can
B
might
C
must
D
need
推荐题目
The school rules state that no child _____ out of the school, unless accompanied by an adult. 
#63402
A
shall allow
B
shall be allowed
C
will allow
D
will be allowed
--- He worked out such different questions at a very young age.--- Oh, he ______ a very smart student then.
#63131
A
could have been
B
should have been
C
might have been
D
must have been