【題目】He decided not to say anything at the meeting unless ________.

A．a(chǎn)sking to B．to ask to C．a(chǎn)sked to D．a(chǎn)sk to

【答案】C

【解析】考查動(dòng)詞不定式的省略。句意為：他決定在會(huì)上什么也不說，除非被請求。unless asked to相當(dāng)于 unless he was asked to say something。

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