You ______wash your hands before meals.
A．need B．must C．can D．may
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--- I don’t care what people think.
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科目：高中英語 來源：不詳 題型：單選題


PART TWO LANGAGE KNOWLEDGE SECTION A
Directions: Beneath each of the following sentences are 4 choices marked A, B9 C and D. Choose the answer that best completes the sentence.
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—— I can’t get through to the general manager’s office anyhow.
—— The line is busy. Someone _____ the telephone.
A．must useB．usesC．must have been usingD．must be using

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科目：高中英語 來源：不詳 題型：單選題


Dalian is well-known for its mild climate, but it________be very cold in winter.
A．shallB．canC．shouldD．must

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科目：高中英語 來源：不詳 題型：單選題


Parents ____ bring up their children under 16 and educate them properly.
A．couldB．mayC．mightD．ought to

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科目：高中英語 來源：不詳 題型：單選題


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A．wouldn’t rainB．doesn’t rainC．won’t rainD．hadn’t rained

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The two strangers have been talking in the park for a long time as though they ______old friends.
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科目：高中英語 來源：不詳 題型：單選題

He treated me as though/as if _____ his own son. 
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