（题文）
【小题1】（小题1）The students____________air pollution by walking to school last term.
【小题2】（小题2）Your help has_____________. I understand the work better now.
【小题3】（小题3）All the people in the kingdom_____________the magic cloth before the  king saw it.
【小题4】（小题4）Pollution____________our health. So we must protect our environment.
【小题5】（小题5）"The food ________you though it tastes awful," my mother said to me.
【小题6】（小题6）Last Friday we had a sports meeting. I__________the basketball match.
【小题7】（小题7）They said they_____________to protect the environment already.
【小题8】（小题8）It seems unfair to make him______________everything.
【小题9】（小题9）Five and eleven______________to sixteen. Is it right?
【小题10】（小题10）First of all, I____________an apology for a mistake I made last week.

【小题1】Everyone in this town should_________________________(参加) cleaning the city up.
【小题2】Do you want your address written____________________________________(在......顶端) the letter?
【小题3】So together, our actions can______________________（发挥作用）．
【小题4】His eyes were open and everything he saw was____________(颠倒).
【小题5】Smoking_________________________(对......有害) your health. You must give it up.

Excuse me, would you mind your voice down, please?

A．to keep

B．keeping

C．keep

D．kept

Before stamps, people didn't  for the letters they sent,but for the letters they received.

A．pay

B．cost

C．spend

D．take