—Why is he feeling disappointed today?
—Because the suggestion he has been turned down.
A. put away
B. put up
C. put down
D. put forward
网友回答
A. put away
B. put up
C. put down
(答案→)D. put forward
解析：短语辨析。A收拾，整理，放在一边，不管，不故；B举起，搭建，留宿；C写下，记下；D提出。句意：—为什么他今天感觉失望？—因为他提出的建议被拒绝了。根据句意说明D正确。