I'am busy ( ) a plan ( ) the project.A to make,at B to make ,on C making,for D make,about.选哪个

问题描述:

I'am busy ( ) a plan ( ) the project.A to make,at B to make ,on C making,for D make,about.选哪个

选C。 be busy doing 表示忙于做某事,for。。表示为了。

C be busy doing sth make a plan for sth.