在横线上填上合适的介词
1._______ a rainy day, he stays at home.
2._______ noonm he has some bread for lunch.
3.________ the evening, Linda watches TV ______ home.
4.This is a book ________ my sister.
5.—Where are you _______?
—China.
6.He wants to see it _________ himself.
7.I can lean ________ something in the ad.