常用缩写：
1.FH

Friends might not be always trust-worthy, but dogs are; they have long been regarded as the most （        ）company of human beings.

To keep health, we have to keep （        ）hours.

Tom goes to that pub every night to have a bottle of beer. He is a （        ）customer.

Ecological vehicles are made of materials that can be easily （        ）once they are dumped.

The relations between my mother and brother were getting worse as my brother grew older and more （       ）.

He is an incurable idealist; it＇s unlike to help him come down to earth and be more （       ）.

There has been a lot of （        ）prejudice in American.