—We are going to have a picnic next Sunday. —A. The same to you.B. Help yourself.C. Have a

问题补充：

—We are going to have a picnic next Sunday.

—

A. The same to you.

B. Help yourself.

C. Have a good time.

D. I don’t agree with you.

答案：

A. The same to you.

B. Help yourself.

(答案→)C. Have a good time.

D. I don’t agree with you.

解析：The same to you.同样的祝福给你；Help yourself.请随便，别客气；Have a good time.祝你玩得高兴；I don’t agree with you.我不同意你的观点。句意：我们下个星期日打算去野餐。可知选C最符合语境。