改写句子。
1. Being ill, he didn't come to Mary's birthday party. (改为含有状语从句的复合句)
___________________________, he didn't come to Mary's birthday party.
2. The bridge which was built in 1888 is now under repairs. (改为简单句)
___________________________ is now under repairs.
3. He is said to have passed the driving test. (改为含有主语从句的复合句)
___________________________ he has passed the driving test.
4. Although he is still poor, he has already grasped two foreign languages. (改为倒装句)
___________________________, he has already grasped two foreign languages.
5. He didn't go to school until he was ten years old. (改为强调句)
____________________________________________ he went to school.
6. I saw several houses with mosaic floor and wall paintings. (画线部分改写成定语从句)
____________________________________________
7. With the help of the kind old man, we arrived at the remote village before lunchtime. (用with复合结构做).
___________________________, we arrived at the remote village before lunchtime.
8. "Please don't open the window." said Jack politely to his classmate.
Jack asked his classmate politely _________________________ (间接引语).
9. Time permitting, we can have a walk around the playground after supper. (画线部分改写成状语从句)
___________________________, we can have a walk around the playground after supper.
10. When we see from the hilltop, we can find the city more beautiful. (画线部分改写成分词作状语)
___________________________, we can find the city more beautiful.
，其核磁共振氢谱中有2个信号(参见下图)。 
