1. I have read this book three times.
（我已经把这本书读了三遍。）
2. She has learned English for five years.
（她学英语已经五年了。）
3. They have visited many countries.
（他们已经游览了很多国家。）
4. We have just finished our homework.
（我们刚刚完成作业。）
5. He has never been to Beijing.
（他从未去过北京。）
6. Have you seen this movie before?
（你以前看过这部电影吗？）
7. She has already eaten breakfast.
（她已经吃过早餐了。）
8. The teacher has taught us a lot of knowledge.
（老师已经教给我们很多知识。）
9. I haven't met him for a long time.
（我已经很久没见到他了。）
10. They have lived in this city since 2010.
（他们从 2010 年起就住在这个城市。）
