—It’s hot here. Why not your coat?—OK.A. take offB. taking offC. to put onD. put on

问题补充：

—It’s hot here. Why not your coat?

—OK.

A. take off

B. taking off

C. to put on

D. put on

答案：

(答案→)A. take off

B. taking off

C. to put on

D. put on

解析：考查固定句式。why not do sth表示建议，后面接动词原形，意思是为什么不…联系上文，这很热，为什么不脱掉你的外套，put on穿上，take off脱下，故选A。