—Is the letter from your mother?—Yes. But she ________ the letter herself, because she doesn't even know one word.

—Is the letter from your mother?—Yes. But she ________ the letter herself, because she doesn't even know one word.

#86535

needn't have written

can't have written

might not have written

should not have written

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was

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--I once got lost during my first visit to Beijing. -- Oh, did you? You ____ me as your guide.

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needn’t

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You look so tired. You _________ have stayed up again.

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共2810题