在下列各句的空格内填上一个适当的完整的单词，该词的首字母已给出。
1. You have more pens than I, but m ___ are better than yours.
2. The doctors and nurses tried every effort to save the d __ boy, but it didn't help.
3. Would you please write down your name, home a _ ,and mobile phone number?
4. The shoes are too expensive. I can't a __ them.
5. Mobile phones must be kept off d ___ the meeting．