【題目】— What is the policeman doing?

— He raises his arm as a(n)______for us to stop.

A. mark B. signal

C. application D. goal

【答案】B

【解析】考查名詞辨析。句意為“那位警察在做什么？”“他抬起手臂示意我們停下。”A. mark記號 B. Signal信號，手勢 C. application 應用 D. goal目標。B符合題意，故選B。

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