1. ---- Would you mind if I turned off the air conditioner?
----______. It makes no difference to me.
A. Never mind B. Sure, go ahead C. Not at all D. Why not?
2. _____he is the son of the boss, he started from the lowest position as a common employee.
A. Unless B. Since C. While D. As
3. The two-year-old girl who was____ twice and ignored by 18 people has finally died in a hospital,.
A. run up B. run away C. run after D. run over
