My mother ___________the dishes when I got home.
--- water do we need to drink to keep healthy every day?---Study shows that eight glasses should be enough.
---If we take environment problems seriously, the earth worse and worse.---I agree.
I’m good at English,and I want to learn ____ foreign language.
---When will you start school?---I’m not quite sure. Maybe three weeks.
It’s possible_____ the old. We should often do so.