—Who is the woman that is watering flowers? Is it your mother?—No, it _________b

题型：期末题难度：来源：

—Who is the woman that is watering flowers? Is it your mother?
—No, it _________be her. She went shopping just now.      [     ]
A. mustn"t
B. may not
C. can"t
D. needn"t

答案

举一反三

—_____ you come to my birthday party tomorrow, Robert?
—I"m afraid not. I have to study for my exam.[     ]
A. Must
B. Should
C. Can
D. Need

题型：同步题难度：| 查看答案

—Let"s go to the supermarket by taxi.
—We ____ take a taxi. It is not far from here.[     ]
A. can"t
B. needn"t
C. couldn"t
D. mustn"t

题型：同步题难度：| 查看答案

—Danny, I can"t stop playing computer games.
—For your health, I"m afraid you                 .[     ]
A. can
B. may
C. could
D. have to

题型：同步题难度：| 查看答案

—Listen! Is Tom singing in the classroom?
—No. It ____ be Tom. He has gone to Paris.[     ]
A. may not
B. needn"t
C. can"t
D. might

题型：同步题难度：| 查看答案

—_____ I swim in that river?
—No, you ______. It"s dangerous to swim in it.[     ]
A. Must; can"t
B. can"t; may not
C. May; mustn"t
D. Must; needn"t

题型：同步题难度：| 查看答案