The light railways and subways make it ________ for people to travel around Chongqing. 

My brother is not feeling _______at the moment, He’s not in ________ these days.

To live a low-carbon life , we must try to save _____ energy and produce ____ carbon .

--- Is the boy’s house ten miles away from the school?--- Yes. Nobody in her class lives ________.

Those toys for children look _______ and sell _______.