I think _____ a foreign language is not easy ,You should ____ it oftenA.to learn ;to practice B.learning; pratice C.learn; praticing D.learns;to pratice 选哪个,为什么啊 think后面的动词用什么形式啊.

问题描述:

I think _____ a foreign language is not easy ,You should ____ it often
A.to learn ;to practice B.learning; pratice C.learn; praticing D.learns;to pratice 选哪个,为什么啊 think后面的动词用什么形式啊.