A).根据句意，用括号中所给词的正确形式填空，每空一词。

  36. Yesterday was my son’s _________ (twelve) birthday, he was very happy.

37. The more I said, the _________ they felt. (angry)

38. When you have difficulty_______ (solve) the problems, please ask me for help.

39. The new robot is moving around _______ (free) in the office.

40. The books __ _______ (write) by Guo Jingming are popular among the students.

41. The project they are talking about _______(need) improving.

42. __________________ litter carelessly in the schoolyard is bad manners. (drop)

 B).根据句意、汉语提示写出单词的正确形式,每空一词。

43. Tony is 16 years old , I think he can look after ___    __(自己) well.

  44. Many Chinese have trouble using a knife and fork __        _ (正确地).

45. Yellow can __       __(提醒)you of a warm, sunny day.

46. The bag on the chair is one of those __________ (工程师).

47. It is one of the tallest book __          __ (架子) in the reading-room.  

48.The bridge broke down in the           （地震）

49. It is eight fifteen now. We may also say it is a quarter ________(超过)eight.

50. I________（设法完成）to stop the baby crying just now.