The light in the office is off. The teacher _____ be there now. [ ]A. may B.

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The light in the office is off. The teacher _____ be there now. [ ]
A. may
B. can"t
C. mustn"t
D. must

答案

举一反三

—Excuse me. Can I take the summer English course?
—Yes. But the course _____ before it starts. [ ]
A. can be paid for
B. can pay for
C. must pay for
D. must be paid for

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—Mum, may I watch TV after supper?
—No, You _____ finish your homework first. [ ]
A. may
B. need
C. must
D. mustn"t

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—Look! It _____ be Jane on the playground.
—It _____ be her because I saw her enter the dance room just now. [ ]
A. must; mustn"t
B. can; can"t
C. may; mustn"t
D. must; can"t

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—There"s somebody at the door. _____ it be Jim?
—No, it _____ be him. It"s just seven o"clock. It"s too early. [ ]
A. May; can"t
B. Will; won"t
C. May ; mustn"t
D. Must ; may not

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—Where is Jack, please?
—He _____ be in the reading room. [ ]
A. can
B. need
C. would
D. must

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