20. The boy wanted to ride his bicycle in the street, but his mother told him _____.

A. not do it　　　 B. not to do　　　　 C. not to　　　　　 D. do not to

19. -Do you often talk with your friends on the telephone or mobile phone?

　 　-　　　　　 . I like using QQ.

A. None　　　　　 B. Either　　　　 C. Any　　　　　　 D. Neither