1 . 请选择方框中所提供的单词或短语并使用其正确的形式将下列句子补充完整,每词或每短语限用一次。

passenger; expensive; invent; success; memory

1. The ring made of real diamond is________than a glass one. So you’d better check it carefully before you pay.
2. I stayed in the UK for 3 months in 2003 and I have got a lot of beautiful________. I will remember them in my whole life.
3. Who is the________of this useful machine? It really helps me a lot!
4. If you want to be a________person, you should keep going and never give up.
5. There are not many________on the bus. People prefer to take the subway instead.