Answer:
1. His only aim was to cheat.
2. Fishing in this stream is permitted for license holders.
I will lock the door to prevent theft.
What is essential is to maintain a healthy diet.
A. everywhere
A. cheerfully
Step-by-step explanation:
An infinitive is the use of "-to+base verb" in a sentence while a gerund is the present participle form of the verb "-ing". So, whether a gerund is used or an infinitive is used in a sentence all depends on how the sentence is structured and the form of the main verb.
1. His only aim was to cheat. -Infinitive.
2. Fishing in this stream is permitted for license holders.- gerund
1. I will lock the door to prevent theft. - infinitive
2. What is essential is to maintain a healthy diet.- infinitive.
Adverbs are those words that modify the verb in a sentence. So, how they work will be based on what the verb is.
In sentence 1, the adverb is "everywhere" and in sentence 2, the adverb is "cheerfully". There are no options provided for the third sentence.