题目内容：

would you please keep the window___?let the fresh air in.A open B opening C opened D to open

优质解答

A open 在这里是形容词 把窗保持在开着的状态
keep sth.加形容词就表示“把..保持在...状态”
i eat less to keep myself slim.我吃得很少来保持自己苗条