We have in Class+基数词还是序数词

We have in Class+基数词还是序数词
We have in Class+基数词还是序数词

We have in Class+基数词还是序数词
We are in Class +基数词
例如：We are in Class 3.

基数词。
因为class后加数字，数字算在基数词里。
而序数词则指顺序，这里不应该用。

加基数词，例如，in class 2,在2班