Answer:
1. Try to do it yourself.
2. She learned speaking English herself.
3. The student worked out the sum himself/ herself.
4. I want to meet the Headmaster himself.
5. I run the business myself.
6. I am looking for this color itself.
7. He did it himself.
Explanation:
Self pronouns are those personal reflexive pronouns that end in -self/-selves. They are used to reflect the personal pronouns in the sentence when it refers to the same subject/ noun of the verb in the sentence.
1. Try to do it yourself.
2. She learned speaking English herself.
3. The student worked out the sum himself/ herself.
4. I want to meet the Headmaster himself.
5. I run the business myself.
6. I am looking for this color itself.
7. He did it himself.