. Dream of the Red Chamber is _____ worth _____ because we can learn a lot about the noble families in the feudal society.

I don’t like her face;        , she smokes, which is something I hate.

In the good care of the nurses , the boy is          recovreing from his heart operation .

As he works in a remote area, he visits his parents only _______ .

A teacher must see to it that every one of his students develops        .