By popular consensus, great painters can mix the colours together within a short period of time to get the __________colour.

Tom, try ________ much noise while you are eating noodles here in Japan. It’s good manners.

Having cycled for two days, Howard at last arrived at ______ was a place famous for its beautiful scenery

I’m really depressed after so many failures. I can’t see any hope.—Cheer up! Behind every misfortune_______!

You can find ________ become more difficultto see clean rivers in our city.