—Do you think our teacher is　　　　？—Yes， he always corrects our homework and prepares his lessons　　　　. 

—Jane, Peter has got a well-paid job in a foreign company.—You mean he is much _____ now.

We don’t have to keep these old chairs any more. ________, they are falling apart（支离破碎）.

Failure hurts adults and children ______ , but it can make a positive contribution to your life once you learn to use it.

The demand for _____ skilled workers is still increasing.