An agent went rogue once an enemey killed his fam.
Answer:
1. Try to do it <u><em>yourself</em></u>.
2. She learned speaking English <u><em>herself</em></u>.
3. The student worked out the sum <u><em>himself/ herself</em></u>.
4. I want to meet the Headmaster <em><u>himself</u></em>.
5. I run the business <em><u>myself</u></em>.
6. I am looking for this color <em><u>itself</u></em>.
7. He did it <em><u>himself</u></em>.
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 <em><u>yourself</u></em>.
2. She learned speaking English <em><u>herself</u></em>.
3. The student worked out the sum <em><u>himself/ herself</u></em>.
4. I want to meet the Headmaster <em><u>himself</u></em>.
5. I run the business <em><u>myself</u></em>.
6. I am looking for this color <em><u>itself</u></em>.
7. He did it <u><em>himself</em></u>.
I can’t tell where your third stanza is due to how you typed it. You didn’t make it visible enough to tell.
The correct answer is the first option.
The sentence that presents the correct subject-verb agreement is the first one since in it we are talking about "heavy rains" OR "fast-melting snow". In other words, the subject is coordinated by the conjunction "OR" which makes the subject singular. The verb "causes" is conjugated in the third person singular.