题目内容
18.Mary is sure to come for dinner if she ________ time this evening.( )A. | has | B. | will have | C. | had | D. | is having |
分析 今天晚上如果玛丽有时间,她一定来吃晚饭.
解答 答案:A if引导的条件状语从句中,句型是主将从现,主句可以是一般将来时,也可以是一般现在时,但是从句要用一般现在时,根据句中的关键词she,是第三人称单数,动词应用第三人称单数形式为has.故选择A.
点评 本题考查的是英语中一般现在时的用法,要注意主语的单复数形式,并且要根据主语,能选择动词的正确形式.
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