【題目】__________ you may have, you should gather your courage to face the challenge.

A. However serious a problem

B. Whatever serious a problem

C. However a serious problem

D. No matter how a serious problem

【答案】A

【解析】句意：無(wú)論你可能有多么嚴(yán)重的問(wèn)題，你都應(yīng)該鼓起勇氣去面對(duì)挑戰(zhàn)。however = no matter how引導(dǎo)讓步狀語(yǔ)從句。

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【題目】C

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