Click the most appropriate option.  1. Professor 

his students about some interesting facts.

2. Ann 

to his daughter that she had to read ten pages a day.

3. Martha 

Saule about the book she was reading.

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1. Professor teaches his students about some interesting facts.
2. Ann explains to her daughter that she had to read ten pages a day.
3. Martha tells Saule about the book she was reading.

Explanation:
1. The word "Professor" refers to a teacher who teaches in a higher education institution, such as a university. They are responsible for delivering lectures and providing information, which is aligned with the context of "teaching his students about some interesting facts."

2. The word "Ann" is a name commonly given to females. In this context, she is someone who is advising or instructing her daughter to read ten pages a day. This action demonstrates a parent helping their child with their studies.

3. "Martha" is having a conversation or sharing information with "Saule" about the book she is currently reading. This type of interaction often occurs between friends or acquaintances, where one person discusses a book they find interesting or informative.

To determine the most appropriate option for each sentence, it is important to consider the meaning and usage of the verb used in each sentence. For example, a professor typically imparts knowledge to students, a parent advises their child, and friends discuss various topics. By analyzing the verb and the context of each sentence, we can confidently select the correct option for each scenario.