—Growing population resulted in growing rubbish.—There is ______that rubbish will become the major threat to human beings in future.

The records of S.H.E are____ being bought, for their songs can bring energy into us.

Nowadays, there is a ______ increase in children’s creativity, for they are greatly encouraged to develop their talents.

The officials of the National Ministry of Information Industry advise people to limit the personal information  they make      about themselves online．

I’m sure that if you make good use of your ____ time, your English will be improved in a short time.