Billy: I’ve been fixing the computer for over three hours, but it still doesn’t work. Nana: Why don’t you take a rest and try 　　　?  Maybe you’ll do better then.

The young woman sings as        as the singer.

Li Xing’s illness(病) is very_____. You must take his illness ______. 

____ do you exercise ?

I often watch TV plays on weekends ,what about you ?--I _____watch them .they are long and boring .