题目内容
20．-I don't know if Mr．Li _____in Beijing this evening．If he _____，please call me．-OK．（ ）
| A． | arrives； will arrive | B． | will arrive； arrives | ||
| C． | arrives； arrives | D． | will arrive； will arrive |
分析 --我不知道李先生今天晚上是否到达北京．如果他到了，请给我打电话
--好的
解答 答案：B
第一个设空处位于if引导的宾语从句中，由于时间状语是this evening，所以用一般将来时，构成是：主语+will+动词原形；第二个设空处位于if引导的条件状语从句中，条件状语从句用一般现在时代替一般将来时，主语是he，动词用第三人称单数，所以答案为：B．
点评 本题考查了动词的时态．做题时，一定要特别关注有关的时间短语，这是判断句子时态的标志．在没有时间状语的情况下可以联系上下文根据语境来做出正确判断．
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