You’d better smoking you will get ill.A. go on; soB. give up; andC. give up; orD. give in

问题补充：

You’d better smoking, you will get ill.

A. go on; so

B. give up; and

C. give up; or

D. give in; so

答案：

A. go on; so

B. give up; and

(答案→)C. give up; or

D. give in; so

解析：句意“你最好戒烟，否则，你的身体会变虚弱。”go on“继续”；give up“放弃”；give in“屈服”。And表并列，or表转折。故选C。