—Look! A book is on the floor. Whose is it?—It ______ be Rick’s. It has his name on it.
#75808
A
mustn’t
B
can’t
C
must
D
need
推荐题目
一When he know the result of today’s job interview?一In a couple of days．
#63658
A
should
B
may
C
shall
D
must
“No student,”the headteacher stressed, “_______ go out of the school after ten o’clock at night without my permission. ”
#63373
A
shall
B
will
C
must
D
may
You ______ be hungry already--- you had lunch only two hours ago!
#63140
A
mustn’t
B
wouldn’t
C
can’t
D
needn’t