You didn't underline anything, so we cannot know for sure what the correct answer is. However, I'll just write down the entire infinitive phrases in these sentences, and you can see the answer based on that:
1. to see a great play
2. to cheer good plays
3. to practice until you know all the plays
Answer: The young seagull was very hungry. His mother had a piece of fish in her beak and she was teasing the young seagull with it. Because the sight of the food "maddened" him, he wanted to snatch it from his mother. The young seagull dove towards the food not realizing that he was already flying. This hunger compelled him to finally take his first flight. What a sight to see for the mother seagull!
Explanation: there
6. to drive
7. to help
8. /
9. To be
10. /
11. to travel
An infinitive is an essential form of a verb, always in the form of TO + verb. It gives us a basic, impersonal, dictionary form of the verb, which provides us with its meaning. In a sentence, it can complement certain verbs with incomplete meaning, such as modal verbs (e.g. I have to go), or express a purpose of some other verbs (e.g. I went to buy groceries).
Answer: THE SECOND ONE I THINK BECAUSEIF YOU READ IT IT SAYS RIGHT THERE
Explanation:
