we wil go on a trip to the place of interest this weekend,weather?

问题描述:

we wil go on a trip to the place of interest this weekend,weather?
A to permit
B permits
C permitting
D permitted

在这四个选择中,C 最好.因为:

其他三个在语法和词义上说不过去

C在语法和词义上都可行,称作“现在分词结构”作条件状语(= if weather permits).其中,permitting的逻辑主语是 weather.