15.Great changes ______ in my home town and a lot of factories ______.

33.They’re always ______ unimportant matters.

5. Why the explosion occurred was ________ the laboratory attendant had been careless．

14.“陵节而施”出自《礼记·学记》中的“不陵节而施之谓孙”，这向话指的是教育要遵循个体发展的（ ）。

36.We unanimously elected him ______ chairman.

20.Having a brother or sister protects adolescents against negative feelings such as loneliness and guilt, but they also have to learn to ________ and to control their emotions.

14.The _______ of the Titanic was found in September 1985, but recovering it is a very difficult prospect.

6. Joan is in the dorm, putting the final _______ to her speech.

54.Zuffi describes Morandi as one of the most intimate and poetic expressionists of European art in the central decades of the 20th century.

28. Mr. Harrison was finally employed by the company because his ability and work experience could ________ the position perfectly.

12.The factory produces half a million pairs of shoes every year, 80% _______ are sold abroad.

32.Just ______ he caught the ball, there was a tearing sound.