It’s a fine day today. Shall we go swimming? .But we need to be home before six o’

问题补充：

--- It’s a fine day today. Shall we go swimming?

--- .But we need to be home before six o’clock.

A. Have a nice time!

B. Not at all.

C. You are right.

D. Good idea!

答案：

A. Have a nice time!

B. Not at all.

C. You are right.

(答案→)D. Good idea!

解析：句意：今天天气真好，我们一起游泳去吧。好主意，但是我们需要六点前回家。根据句意可知，第二个说话人认为去游泳是个好主意，但又用but 表示了转折，要早回来。have a nice time祝你玩得高兴；not at all 一点也不；You are right 你是对的。根据句意可知选D。