—Whose exam paper is it? —It ______ be Li Lei"s. He always forgets to write his

题型：江苏期中题难度：来源：

—Whose exam paper is it?
—It ______ be Li Lei"s. He always forgets to write his name on it.

[ ]

A. can
B. must
C. mustn"t
D. can"t

答案

举一反三

Jack ______ be in the library. He is playing football on the playground.

[ ]

A. can"t
B. can
C. need
D. must not

题型：江苏期中题难度：| 查看答案

Would you please _____ here? Look at the sign "No smoking.".

[ ]

A. not smoked
B. not to smoke
C. not smoking
D. not smoke

题型：期中题难度：| 查看答案

Here is a beautiful dress. The owner _____ be a boy.

[ ]

A. must
B. can"t
C. might
D. could

题型：山东省期中题难度：| 查看答案

— Linda ______ ride a bike ______ she was only five.
— Yes, but she can now.

[ ]

A. could; when
B. couldn"t; when
C. can; because
D. can"t; because

题型：期末题难度：| 查看答案

— ____ you work out the math problem?
— No, I _____.

[ ]

A. Do, can"t
B. Can, mustn"t
C. Can, can"t
D. Can"t, must

题型：期末题难度：| 查看答案