题目内容

15.Bettywatches(watch )television on every Friday evening.

分析 贝蒂每个周五晚上都看电视.

解答 答案:watches.这里是说每个周五晚上都做的事情,也就是习惯性经常性的动作用一般现在时,主语Betty是三单,watch是动词观看,三单形式是watches,故答案是watches.

点评 三单动词的变化规则  1.一般情况下,直接加-s 2.以s.x.sh.ch.o结尾,加-es  
3.以"辅音字母+y"结尾,变y为i,再加-es

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