单选题 The firm decided after a board meeting that the old machinery in the factories ______ with.
A. do away B. would be done away
C. should do away D. should be done away

【正确答案】 D
【答案解析】do away with作“废除、去掉”解。根据题意，机器应被处理掉，因此do away with应为被动式，由此得出正确选择D。题意为：公司在开完董事会后决定，旧的机器应该处理掉。