单选题
中国银行
2016-05-07
Ms.Arroya says that when workshop__________begins to slow down,it may be time to hire more workers.
A.product
B.producer
C.produce
D.productivity
参考答案
D
答案解析
【答案】D。解析:在“when”引导的状语从句中,主语要表示“工厂生产力”时,才能和动词“slow down”搭配使用,因此D为正确答案。
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