Below is an adverb because it describes a position.
The bird sat upon the ledge.
Over would be a preposition in the sentence.
I have memorized my speech on elephants.
noun
You can use the word mention in the following sentence. I wish that he would mention me in his speech.
Example sentence - He spoke with such fluidity we stayed to listen to his speech again.
The word 'in' would be a preposition in the example sentence you gave.
To make the sentence possessive, you would phrase it as "Abraham Lincoln's famous speech." This indicates that the famous speech belongs to or was made by Abraham Lincoln.
It's a determiner.
The pronoun that replaces the noun 'speech' in a sentence is it.Examples:He seems to have lost the power of speech. He lost it when he opened the bill.The candidate's speech was brilliant. Itbrought cheers from the audience.
Please provide the sentence you would like me to complete.
My sentence would be: At school we had to do an impromptu speech which was pretty hard to do but it was worth all the effort!