49.Our teacher has a　　　　　 　the deadline for handing in homework by one week.

48.When I was passing the National Hall，I heard the clock s　　　　　 　twelve.

47.Finally the police s　　　　　 　the thief and put him into prison.

46.A film s　　　　　 　is the place where films are made.

45.To most actors and actresses，the Oscar is the most a　　　　　 .

44.Jim said that the whitewater rafting trip was full of e　　　　　 .

43.Be careful with these pretty plants. They are p　　　　　 　and cannot be eaten.

42.Don't worry. Everything is n　　　　　 .

41.We had no m　　　　　 　of transport except for two bicycles.

40.If someone is quick in mind and action，we say he is s 　　　　　.