we are in [ ]a.class one,grade one b.grade one,class one c.one class ,one grads

问题描述:

we are in [ ]a.class one,grade one b.grade one,class one c.one class ,one grads

a

A

选A,是先说班级在说年级
而且你这个选项有问题
Class和Grade应该前面要大写的