在下列空白处填入一个适当的词，使句子意思完整，语法正确。
1．If I had a lot of money, I'd give it to _________.
2．Not all the girls like to get their ears _________.
3．I haven't seen my cat for a few days. I'm _________ about it.
4．The man who is wearing a suit might be running to _________ a bus.
5．Everyone needs to have at least eight _________ sleep a night.
