在学习英语的过程中，掌握好人称代词和物主代词是非常重要的一步。它们不仅能够帮助我们更简洁地表达句子，还能让语言更加生动有趣。接下来，让我们通过一些有趣的练习题来巩固这些知识点吧！

一、单项选择题

1. She is my friend. ______ name is Mary.

A. She B. Her C. Hers D. He

2. This book is ______. I bought it yesterday.

A. mine B. my C. me D. I

3. _________ are going to the park this weekend.

A. We B. Us C. Our D. Ourselves

4. The cat is sleeping on ______ bed.

A. her B. his C. their D. your

5. John and I are good friends. ______ like playing football together.

A. We B. They C. Them D. Us

二、填空题

6. My father is tall, but _______ mother is short.

7. The bag on the table belongs to ________. It’s not yours.

8. Look at those shoes! Those are ________.

9. ________ brother is a teacher. He works hard every day.

10. These books belong to ________. Please return them carefully.

三、改写句子

将以下句子改为使用人称代词或物主代词的形式。

11. This is Tom's pencil box.

改为：__________

12. That is my sister's bike.

改为：__________

13. These are our friends.

改为：__________

14. Those are their books.

改为：__________

15. The dog is hers.

改为：__________

四、情景对话

假设你正在和朋友讨论周末的活动，请根据以下情境完成对话：

A: Hi, John! What are you doing today?

B: I’m studying for my English test.

A: Oh, good luck with that! By the way, _________ want to go shopping later. Would you like to come along?

B: Sure! That sounds great. Thank you!

通过以上练习，相信你已经对人称代词和物主代词有了更深的理解。继续加油，坚持练习，你的英语水平一定会有所提高！