I am not sure how to read your choices but the future perfect third person is
he or she will have followed by the past tense of a verb. You have to read that a couple of times to get it right.
Perfect means the action will be completed some time in the future.
Third person is he she it. (in the singular form.)
he will have become a grandmaster chess player by that time, would be a correct use of the verb become.
Answer:
ROB
Explanation:
Rob is the complete subject since he is the main "character" in the sentence. Mary is secondary. 'Rob' sent a letter to (blank). Without Rob, we wouldn't be reading about sending a letter. Hope that makes sense!
Answer:
Born into slavery in Maryland, Harriet Tubman escaped to freedom in the North in 1849 to become the most famous "conductor" on the Underground Railroad. Tubman risked her life to lead hundreds of family members and other slaves from the plantation system to freedom on this elaborate secret network of safe houses.
The answer in the blank is common themes. It is because using common themes or including them on the speaker's speech could make the audience relate on the topic and to be intrigued or to be interested. With this method, not only will the speaker give out his information but he or she could capture the attention of the audience.