Of all the 40 students in this class,20 students are girls,2

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Of all the 40 students in this class,20 students are girls,20 students are boys and all have toys
从语法角度讲这句话对吗?怎么改呢
重点是20 students are girls，20 students areboys 这两句话各是个完整的句子啊。能这样用吗？

首先,20 students are boys是多余的.前面部分已经暗含了这一句的意思在内了,一个人不是男的,就是女的,不可能有第3种情况存在.
去掉多余的部分后,剩下的两个分句用and连接,就更容易让人接受.后面分句最好加上they做主语.

Of all the 40 students in this class,20 students are girls,2 In our class ________ of the students are girls. In our class,-----------of the students are girls. In our class, about ______ of the students are girls. Onethird of the students in this class are girls 句子主语是? One-third of the students in this class are girls.求句子成分分析, One-third of the students in this class are girls.这句中的主语为什么是 in our class,---of the students-- girls 40% of the students in our class are girls同义句 20％ of the students in our class are girls.同义句 All of the students are in Class One.(重写） The students ----- This is a big class, and----of the students are girls . A.tw