Sitting at the back of the room but in front of some old men and women ______ a very shy girl with two bright eyes.
The air quality in Beijing as well as in the neighboring cities we once spent much time____ better and better.
We will do everything we can____ our city.
Is this school____ you studied in two years ago?
I feel strongly that whatever you____ matter to me.
The way you think of_____ our living conditions sounds reasonable.