--Have you cleaned out the refrigerator _______? ---Yes, I have done it ________. But I haven’t taken out the rubbish ________.

Which is ____________, the telephone, the computer or the light bulb?

 There are many _____ people in the world, they can’t see anything, but they never give up their dreams. 

I find this computer game ______ to play.

I can________ be a nurse．I’m not a very patient person at all．