题目内容
20．Not only Lucy but also Sally ________ us with our study．（ ）| A． | help | B． | helps | C． | to dance | D． | dancing |
分析 不仅是Lucy而且还有Sally帮助我们学习．
解答 答案：B not only…but also有一个就近原则，所以这句的主语是Sally，是单数主语，所以动词要加-s，故选择B
点评 本题考查的是动词的形式．在一般现在时中主语是第三人称单数的时候动词要加-s．
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