在学习英语的过程中，掌握宾语从句是非常重要的一步。宾语从句是用来补充说明主句动作对象或内容的一种复合句结构。为了帮助大家更好地理解和运用这一语法点，我们特意准备了一些练习题供同学们参考。

一、选择题

1. I don't know ______ he will come tomorrow.

A. if B. whether C. that D. what

2. She told me ______ she had finished her homework.

A. that B. which C. when D. where

3. Can you tell me _______?

A. who is the boy B. who the boy is

C. the boy who is D. the boy is who

4. He asked _______ we were going to have a meeting.

A. that B. if C. when D. what

5. Do you remember _______ last year?

A. where did you live B. where you lived

C. you lived where D. where you live

二、填空题

6. I want to know _______ he is from.

7. Could you please tell me _______ you are waiting for?

8. She said _______ she would be back soon.

9. I don't know _______ they are talking about.

10. Can you explain _______ this word means?

三、改写句子

11. The teacher asked, "Do you understand the question?"

改为间接引语：The teacher asked _______ understood the question.

12. He said, "I am reading a book."

改为间接引语：He said _______ was reading a book.

13. She asked, "Where are you going?"

改为间接引语：She asked _______ going.

14. They asked, "When will the meeting start?"

改为间接引语：They asked _______ the meeting would start.

15. He said, "I will finish my work before five o'clock."

改为间接引语：He said _______ finish his work before five o'clock.

通过以上练习题的训练，相信大家对宾语从句有了更深的理解。希望大家能够多加练习，不断提高自己的英语水平。记住，在使用宾语从句时，要注意引导词的选择以及句子的语序。希望这些题目能帮助到你们！