English grammar worksheet practicing "Do / Does" with fill-in-the-blank sentences for children.

To solve this worksheet, we need to decide whether to use Do or Does for each sentence.

Here is the simple rule:
* Use Does when the subject is one person or thing (He, She, It, or a single name like "Nina").
* Use Do when the subject is more than one person (We, They, You) or when talking about yourself (I).

Let's look at each question step by step:

1. She: This is one person. $\rightarrow$ Use Does.
2. They: This is more than one person. $\rightarrow$ Use Do.
3. I: We always use Do with I. $\rightarrow$ Use Do.
4. He: This is one person. $\rightarrow$ Use Does.
5. It: This is one thing/animal. $\rightarrow$ Use Does.
6. You: We always use Do with You. $\rightarrow$ Use Do.
7. We: This is more than one person. $\rightarrow$ Use Do.
8. My father and mother: This is two people (plural). $\rightarrow$ Use Do.
9. Kru Golf: This is one specific person's name. $\rightarrow$ Use Does.
10. Nina: This is one specific person's name. $\rightarrow$ Use Does.
11. Jo and Jinny: This is two people (plural). $\rightarrow$ Use Do.
12. Students: The 's' at the end means there are many students (plural). $\rightarrow$ Use Do.
13. Student: There is no 's', so it is just one student (singular). $\rightarrow$ Use Does.

Final Answer:
1. Does
2. Do
3. Do
4. Does
5. Does
6. Do
7. Do
8. Do
9. Does
10. Does
11. Do
12. Do
13. Does