两道所给词的适当形式填空

问题描述:

两道所给词的适当形式填空
It's cold,we'd better keep the door _____(close)
You may think of a topic _____(talk) about.

closed 天气很冷,我们最后把门关着.keep sth +形容词.
to talk 你可以想个话题谈谈.用不定式.