Our goods with a (an) ________of colors and patterns can meet the demand of customers at different levels.
— Look, there ______. — Oh, there _______.
_______, we continued our way.
________ in Tibet for ten years, he has been accustomed to the life and the climate there.
Look! What a mess the room is! In my opinion, it needs ______.
--- Don’t waste any paper, because our forests ____ every day. ----Sorry, I didn’t know that.