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the professor wanted his students to let him know what the topics were before they_____
A set working B set to working C set about to work D set out working
其他选择错误的原因是
人气:255 ℃ 时间:2019-10-18 08:11:47
解答
我觉得选b.我排除的哈、set不能直接接doing.排除a 、set about 接动词ing,排除c、set out 接动词不定式,排除最后一个、
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