I'm doing a survey (  )English.A.for learning  B.about to learn C.for to learn

问题描述:

I'm doing a survey (  )English.A.for learning  B.about to learn C.for to learn
D.about learning

D
I'm doing a survey ABOUT LEARNING English
我正在做一个关于学习英语的调查
do a survey about sth-----就-- - 进行调查