45名学生的英语

The number of==这是答案知识拓展：同义句是There are 45 students in our class

there are 45 students in our class .

There are there be句型表示“有……” 祝学习进步O(∩_∩)O若有疑问，请指出，希望能和你一起探讨~如果认为我的回答好的话，请及时采纳，谢谢！

there is an average of 45 students of each class

There are forty-five students in our class.

答案： There are祝你学习进步，更上一层楼！ (*^__^*) 不明白的再问哟，请及时采纳，多谢！