在英语学习中，介词是一个非常重要的语法点。它们用来表示名词、代词和其它词之间的关系。为了帮助大家更好地掌握介词的使用，下面是一些介词练习题，大家可以试着完成这些题目来巩固自己的知识。

1. The book is _______ the table.

A. in

B. on

C. at

D. under

2. She is interested _______ learning new languages.

A. in

B. on

C. with

D. about

3. We will meet _______ the park at 5 PM.

A. in

B. on

C. at

D. by

4. He is afraid _______ heights.

A. of

B. in

C. on

D. with

5. The cat jumped _______ the fence.

A. over

B. on

C. in

D. through

6. I am looking forward _______ meeting you soon.

A. to

B. for

C. with

D. about

7. She was born _______ June 15th, 1990.

A. in

B. on

C. at

D. during

8. The letter is _______ the envelope.

A. in

B. on

C. at

D. under

9. They are talking _______ each other.

A. with

B. to

C. about

D. on

10. The car is parked _______ the garage.

A. in

B. on

C. at

D. by

答案：

1. B

2. A

3. A

4. A

5. A

6. A

7. B

8. A

9. A

10. A

通过这些练习题，大家可以更清楚地了解介词在不同语境中的用法。希望这些题目能帮助大家提高对介词的理解和运用能力。继续多加练习，相信你的英语水平会有所提升！