在英语语法中，宾语从句是一个重要的组成部分，它用于表达主句动作的对象或内容。通过练习，我们可以更好地掌握这种句式的使用方法和技巧。以下是一些精选的宾语从句专项练习题，帮助大家巩固相关知识。

一、选择题

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

A) ifB) thatC) whatD) which

正确答案：A

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

A) whenB) whereC) howD) that

正确答案：D

3. Do you remember ________ we met last year?

A) whereB) whoC) whatD) why

正确答案：A

4. He asked me ________ I was going to the library.

A) ifB) whetherC) thatD) because

正确答案：A

5. Can you tell me ________ you want to eat?

A) whatB) whereC) howD) why

正确答案：A

二、改写句子

6. 原句：我不知道他是否能按时到达。

改写为宾语从句：I don't know ________ he can arrive on time.

7. 原句：她告诉我她已经完成了作业。

改写为宾语从句：She told me ________ she had finished her homework.

8. 原句：你记得我们去年在哪里见面吗？

改写为宾语从句：Do you remember ________ we met last year?

9. 原句：他问我是不是要去图书馆。

改写为宾语从句：He asked me ________ I was going to the library.

10. 原句：你能告诉我你想吃什么吗？

改写为宾语从句：Can you tell me ________ you want to eat?

三、填空题

11. I wonder ________ they are going to have a party tonight.

正确答案：if/whether

12. Could you please tell me ________ the bookstore is?

正确答案：where

13. She didn't know ________ the meeting would start.

正确答案：when

14. He said he would call me back as soon as he ________ free.

正确答案：got

15. They talked about ________ they should buy a new car or not.

正确答案：whether

通过以上练习，相信大家对宾语从句有了更深的理解。在实际运用中，要注意根据具体语境选择合适的引导词，并注意时态的一致性。继续多加练习，相信你的英语水平会不断提高！