I _____ peaceful countryside _______ noisy cities while my elder sister prefers _______ in the modern cities.

From the _________ look of Tom’s mother, we knew that she was quite __________what he had done.

We are faced with the problem _________ we should do with so much pollution.

I suggest you delete the useless files on the computer which _______ too much space

Only by communicating with each other more frequently ________ clear away the misunderstandings and solve the conflict.