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2017届高三一轮复习小专题测试8 —John seems happy, even though his wife left him and he lost his job. —I think he ____ to put on a brave face. A． will try B． has tried C． tries D． is trying 【答案】D 【解析】 考查时态。句意：——约翰似乎很高兴，即使他妻子离开了他，他失去了工作。——我想他在竭力扮出一副勇敢的样子。表示目前正在干某事，用现在进行时。 —Did you find the missing couple in the mountain yesterday? —No, but we ____ to get in touch with them ever since. A．have tried B．have been trying C．had tried D．had been trying 【答案】B 【解析】 考查时态。根据答语中的时间状语可知自从那对夫妇在山中失踪以后，人们一直在尽力和他们取得联系，所以用现在完成进行时，表示这个动作一直持续到现在，而且还有可能继续进行下去。 With the country's population reaching 1.6 billion in the mid of this century, most of China's rivers, including the Yellow River, ____. A．is drying up B．will be drying up C．dry up D．have dried up | 
