【題目】______ you keep it a secret for the time being? It’s just between us.

A. Must B. Can C. Should D. May

【答案】B

【解析】

試題分析：考查情態(tài)動詞。Must表示主觀的命令、規(guī)定；can用于征求對方意見，向?qū)Ψ秸埱笤S可；should表達(dá)義務(wù)、職責(zé)等；may也可以向?qū)Ψ秸埱笤S可，但語氣更為委婉。句意：你能永遠(yuǎn)將這件事當(dāng)做秘密嗎？這只是我們之間的事。根據(jù)句意可以判斷， 故選B。

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