We’d better _____ some sports because sports can give us a perfect build and protect us from getting illness easily.
When you drive home, you can’t be_______careful.
often say that something is “as light as air”, but air is___light.
—— Is the bus stop far from here? —— It’s a quarter’s walk, ________.
I’ve got ______work to do on a ________ cold day.
The guide told us that he would organize some business men abroad___next week.