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1. —Whose bike is this?
— I am not sure. It ______ be Mary's.
A.shall
B.must
C.might
D.should
— I am not sure. It ______ be Mary's.
A.shall
B.must
C.might
D.should
答案
C
2. —Look! The man at the gate ______ be our headmaster. He is always standing there every morning.
—No, it ______ be him. He is holding a meeting in the office now.
A.must; can't
B.must; mustn't
C.can; can't
D.can; mustn't
—No, it ______ be him. He is holding a meeting in the office now.
A.must; can't
B.must; mustn't
C.can; can't
D.can; mustn't
答案
A
3. Alice has been in China for several years. She ______ be a big girl now.
A.need
B.must
C.can
D.may
A.need
B.must
C.can
D.may
答案
B
4. —Whose baseball is this?
—______ He loves baseball.
A.So do I.
B.I enjoy playing baseball.
C.I don't know.
D.It must be Jim's.
—______ He loves baseball.
A.So do I.
B.I enjoy playing baseball.
C.I don't know.
D.It must be Jim's.
答案
D
5. There ______ a girl singing next door. Can't you hear her beautiful voice?
A.can't be
B.must have
C.must be
D.can't have
A.can't be
B.must have
C.must be
D.can't have
答案
C
