12.Are there any ______________ (相似之处) between Goethe and Byron.

11.(众所周知)_______ ______ _______ ______　 ______, China is a country with a long history.

10.It’s ______ _____ _____ (很难想象)what our lives would be like if we did not have electricity and clean water.

9.We gave Peter a nice present ______ ______ ______ (作为对。。。。。回报)his cooperation.

8.________ _______ _______ _______ ________ ________ _______ _____ ,(在好心的老人的带路下，用with复合结构做)， we arrived at the remote village before lunchtime.

7.我们对他的健康表示关心。We _________ ________ ________ his health.

6.When autumn comes, leaves (变成) ________ ________ orange, red and gold.

5.They also ________ ________ (进行)other experiments.

4. It worries the tourists. It keeps raining.

　 ______ ______ ________ _________ ________ the tourists.

3. Some people tried to escape, some people stayed in their houses.

　　 People ___________ tried to escape _______ stayed in their houses.