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【单选题】

---is the school from your home, do you know?
--- About 30 minutes’ walk.

A.
How far
B.
How long
C.
How much
D.
How soon
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A.
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B.
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C.
can't
D.
wouldn't
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A.
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B.
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C.
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A.
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B.
was used to; used to
C.
used to; am used to
D.
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A.
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B.
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C.
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D.
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A.
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A.
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A.
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B.
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C.
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A.
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