Question

6.一Dad,why should I stop computer games?

—For your health,my boy,I’m afraid you.

   A. to play;must   B. playing;have to

    C.to play;can   D. playing;may

Answer 1

6.B

6.B   本題考查stop doing sth.和情態動詞have to。根據兒子的提問可知，父親要兒子停止玩電腦游戲停止做某事”為stop doing sth.；表不客觀上的“必須，不得不”用have to。故選B。