一个简单句是不可能同时出现两个谓语动词的 所以句子不对,应改为There are only 4 students taking part in the class或 There are only 4 students who take part in the class 一个是现在分词作定语 一个是定语从句.
There are only 4 students take part in the class.(错误原因:be 动词后面不会直接接动词原形) 第一种该法:There are only 4 students taking part in the class. 第二种该法:There are only 4 students who take part in the class...