20. Don’t leave matches or cigarettes on the table within　the ________ of little children .

　A．hand 　　　　　　 B．reach 　　　　 C．space 　　　　　 D．distance

19. --- Where____ the recorder?　 I can’t see it anywhere.　

--- I ___ it right here.　 But now it’s gone!　　　　　

A. did you put; have put　 　　　　　　　B. have you put; put　　

C. had you put; was putting　 　　　　　D. were you putting; have put　 　　

18. Anna was reading a piece of science story, completely _______ to the splendid world.

　　 A. having been lost　　　 B. to be lost　　　　 C. losing　　　　 D. lost

17. It is their clothes, make-up and the way they walk ______ people laugh.

A. to make　　　　 B. that makes　　　 C. which makes　　　　 D. that make