题目内容

—______ you please tell me something about the life in Canada?
— Sorry, I______ . I don’t know either. I’m from Australia.
A．Could, couldn’tB．Can; couldn’tC．Could, can’tD．Can, mustn’t
C
could是can的过去式，但有时它只表示委婉语气表示更加礼貌而不是表示时态。
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---Listen! Is Kitty in the next room?  ---No, it ______ be Kitty. She has gone to Beijing.
A．may notB．can’tC．mustn’tD．needn’t
—Must I come back before supper, mum?
—No, you        .
A．can’tB．mustn’tC．don’tD．needn’t
--______ we clean the classroom at once?
--No, you _____. You____ clean it after school.
A．Must, needn’t, mayB．Must, mustn’t, can
C．Shall, can’t, mustD．Need, mustn’t, may
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A．mustB．canC．shouldD．would
--Excuse me，Mr. Li,_________ I close windows? It’s cold now.
--Yes，you__________
A．can; can't B．can; may C．may; can’tD．may; can
You ________ stop when the traffic light turns red. 
A．canB．had betterC．needD．must
A: Listen! Is it Linda singing in the next room?
B: No, it __________ be her. She is still in Shanghai.
A．can’tB．couldn’tC．may notD．might not
You ______ to the party if you’re so busy.
A．don’t need comeB．not need coming
C．needn’t comeD．need not to come

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