Don"t go out to play. You _______ finish your homework first. [ ]A. mus

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Don"t go out to play. You  _______  finish your homework first.   [     ]
A. must
B.  have
C.  had
D.  have to

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举一反三

Could you please _______  the laundry?[     ]
A. did
B. do
C. to do
D. doing

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—Must I finish the work today?
—No, you _______.  You_______ finish it tomorrow.  [     ]
A. mustn"t, must
B.  needn"t, may
C.  can"t, may
D.  needn"t, can

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用could, can, may, must, needn"t填空。
1.  A: _______you answer the question in English?
    B:  Sorry, I_______._______I answer it in English.
    A: No, you _______.You _______answer it in Chinese.
2. A: _______I ask a question?
    B: Yes, you________.  But you _______wait a minute.
3. A: _______I use your eraser, Bill?
    B: Sorry.  I don"t have one.  Ask Mary.  She _______ have one.
4.  A: _______you help me do the shopping?
    B: OK. Sure.
5.  A: _______you sweep the floor?
    B: But_______  finish my homework first.
    A: OK.  You_______ do it at once.

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—can you go swimming with us this afternoon?
—Sorry, I can"t.  I______ do the chores at home.[     ]
A. can
B.  could
C.  can"t
D.  have to

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—______ you find your math book?
—Yes, I can. [     ]
A. Does
B. Are
C. Do
D. Can

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