【題目】Three million tons of coal ______ every year in the city.

A.is exploited B.are exploited

C.had exploited D.have exploited

【答案】B

【解析】句意:這個(gè)城市每年要用三百萬(wàn)噸煤。主語(yǔ)中心語(yǔ)是tons,Three million和of coal都是修飾tons的,故謂語(yǔ)動(dòng)詞用復(fù)數(shù),煤是被用,表示被動(dòng),故選B項(xiàng)。

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