save water还是saving water?_____water.(节约用水)_____the room clean.(保持)用不用+ING?是句子的哦。是Saving or save?
问题描述：
save water还是saving water?
_____water.(节约用水)
_____the room clean.(保持)
用不用+ING?
是句子的哦。
是Saving or save?
答
saving water
keep the room clean
答
save water````
keep``````
答
直接用原形
答
要根据语境8~
答
不用ing,直接用原形.
save water
keep the room clean