I often watch TV this evening I’m doing my homework .A. andB. butC. orD. so

问题补充：

I often watch TV,this evening I’m doing my homework .

A. and

B. but

C. or

D. so

答案：

A. and

(答案→)B. but

C. or

D. so

解析： 连词题。我经常看电视，今晚我做作业。前后形成转折关系所以选B