The glass doors have taken the place of the wooden ones at the entrance,_____ in the natural light during the day.A.to let B.letting C.let D.having let答案给的是B,为什么不选A?A也表主动啊,而且也是非谓语.
问题描述：
The glass doors have taken the place of the wooden ones at the entrance,_____ in the natural light during the day.
A.to let B.letting C.let D.having let
答案给的是B,为什么不选A?A也表主动啊,而且也是非谓语.
答
在这儿都做结果状语.不定式表示的结果通常是未曾料想到的结果,不太好的结果；而现在分词表示的结果,则强调自然发展的结果.如：They lifted the rock only to drop it on their own feet .Football is played all ove...