同义句转换，每空一词。
1. To eat a balanced diet is very important.
________ very important ________ eat a balanced diet.
2. They are watching TV at home now.
They are watching TV at home ________.
3. What's wrong with your sister?
What's ________ with your sister?
4. She has a sore throat.
There is something ________ her throat.
5. There is a lot of milk in the bottle.
There is ________ milk in the bottle.
