Many good suggestions were at the meeting to cheer up teenagers to be more confident.
A. added to
B. figured out
C. got across
D. put forward
网友回答
A. added to
B. figured out
C. got across
(答案→)D. put forward
解析：短语辨析. A.添加到;B.想出; C.通过;D. 提出;拿出.句意:会议上提出许多不错的建议来使青少年更有信心.故选D.