Many useful suggestions were at the meeting to ensure people can live a low carbon life.A

问题补充：

Many useful suggestions were at the meeting to ensure people can live a low carbon life.

A. put up

B. put forward

C. put away

D. put off

答案：

A. put up

(答案→)B. put forward

C. put away

D. put off

解析：动词词组辨析题。A. put up 张贴 B. put forward 提出 C. put away 放在一边 D. put off 推迟句意：在会上提出了许多有用的建议为的是确保人们过上低碳生活。根据语境选B