What is your name？- My name is Jack.
Where are you from？- I'm from the UK.
How old are you？- I'm 18 years old.
How many people are there in your family？- There are four.
Who are they？- My father, my mother, my older brother and I.
这些句子涵盖了自我介绍、家庭情况、年龄等常见话题，适合用于日常交流。希望这些例子对你有所帮助!