They watch TV___Sunday evening ,but we ___.A.on,don't B.in,do C.on,aren't D.in,are

问题描述:

They watch TV___Sunday evening ,but we ___.A.on,don't B.in,do C.on,aren't D.in,are

答案应该是A为什么不用aren't因为watch是动词,否定 动词前用助动词