(2013·重庆高考)Recycling is one way to protect the environment; reusing is ________.

There is ______ wrong with this computer. It doesn’t work well.

Be quiet！Our teacher has _________ to tell us.

 —Would you like to tell your problems to your mother or to your father?— ______. I usually keep it deep in my heart.

—Did you do __________ on vacation? ---Not really. I just stayed at home and helped mom.