Tim is my good friend and my c___ as well.We are both in Class2.

问题描述:

Tim is my good friend and my c___ as well.We are both in Class2.

应该填写 classmate,
因为是both in class 2,
那就是同学了
就是classmate,为什么不加sTim is,是单数,

若要加s, 那my good friend也要加,变成my good friends

如果是Lilei and Hanmeimei [ my good friends and my classmates ] 这时才要。