It is good____ a lot of water.A.drinking B.drink C.to drink D.drinks为什么要选此答案?
问题描述：
It is good____ a lot of water.A.drinking B.drink C.to drink D.drinks
为什么要选此答案?
答
A。It是形式主语，drinking a lot of water才是真正的主语。
答
A，be good doing sth
答
C.to drink
不定式短语做真正的主语；it是形式主语.
答
选C. to drink
BE GOOD TO DO STH.