—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
--We need a person very much to think up a creative idea.--________ the new manager have a try?
#63176
A
Shall
B
Must
C
Should
D
Need
---Must I hand in my exercise book now, Mr. Zhao?---No, you ______. You may give it to me tomorrow.
#76928
A
mustn’t
B
can’t
C
needn’t
D
don’t
－What made you _________ so happy?－Our class ________ Class Three in the basketball game yesterday.
#77106
A
to feel; beat
B
feel; won
C
feel; beat
D
to feel; won
— Listen! Helen is singing in the classroom.—It _______ be Helen. She has gone to Shanghai.
#74428
A
mustn’t
B
may not
C
can’t
D
should