1 it's(difficult to image)(很难想象)what our lives would be like if we did not have electricity
and clean water
2 (It is common konwlodge)(众所周知),China is a country with a long histoty
3 Are there any (familiar)(相似之处)between goetheand Byron
4 He is not always on the ball in class because he is not interested in his lessons(on the ball 的意思:机灵、勤奋、留心）
5 I （feel honored to）（感到荣幸)won the holiday and have made so many friends
6 I was too tired to eat anything we were given(改为复合句)
I was （so tired that）I （can't eat）anything we were given