Choose the best words or phrases and complete the passage.(选择最恰当的单词或短语完成短文)
Frank is my friend. His family is rich. His parents always give him 1pocket money. But Frank thinks his parents work very hard and it's not easy 2them, so he always tries his best to save money. He has some good ways to do it.
Frank likes reading. He has lots of books. He tells me he often buys books online, because they're3.And when he has free time, he often goes to bookstores or libraries to do some reading.
Frank has a bike. He usually goes to school by bike. Sometimes when it 4 or snows, he walks. These two ways help Frank keep5and save money.
Frank brings a bottle of water to school every day. When other students drink juice, he enjoys his water. He thinks water is the cheapest 6the best drink.
Some students think Frank is mean. But I don't think so. I think he is right. What do you think of 7 ?