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–Areyousureyouhaveto?It’sbeenverylate.--Idon’tknow

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問題詳情:

–Areyousureyouhaveto?It’sbeenverylate.--Idon’tknow

– Are you sure you have to? It’s been very late.

-- I don’t know ______ I can do it if not now.

A. where  B. why   C. when   D. how


【回答】

C

知識點:連詞

題型:選擇題