【小题1】Natural resources on the earth are very ______ (有限), so we should make good use of them and protect them.
【小题2】We had a heated discussion in a relaxed ______ (气氛)yesterday.
【小题3】Th e ______ (起源) of this custom sounds very funny.
【小题4】Henry Adams was ______ (漫步) down the pavement in London when a servant invited him to a big house.
【小题5】To their surprise, the medicine produced ______ (猛的) reaction.
【小题6】The international society is actively taking ______ (措施) to offer assistance to the people in Nepal.
【小题7】We didn’t win the game this time and we all think it was Bill’s ______ (过错).
【小题8】Only after we answered the guard’s questions were we ______ (容许) to enter the building.
【小题9】I was caught in the traffic jam after work, so I missed the first two ______ (场) of the play.
【小题10】Roast duck in his restaurant is quite popular with ______ (顾客), for it is very delicious.