yes, "master of oratory" means that president obama is very good at public speaking.
I think you are referring to "oratory"-- this is an old word for public speaking. A person who is a "master" of oratory is considered an excellent public speaker, and even those who don't agree with the president believe he speaks very well. So yes, it would be true that he is a master of oratory.
See if you can phrase that in the form of a sentence.
He was multilingual, a speaker and writer of several languages.
No, "guest speaker" is a noun phrase, not a compound preposition. A compound preposition is two or more words that function as a single preposition, such as "in front of" or "next to."
nothing
Two teachers with Master's Degrees.
The phrase "to my liking" means that something is pleasing or satisfactory to the speaker's personal taste or preference. It indicates that the speaker finds the thing in question enjoyable or agreeable according to their individual standards.
It is a phrase said out of anger. It can be used as an alternate to "**** off". This phrase does not mean the speaker actually wants you to give him oral sex. On the other hand, the speaker could be suggesting you to literally give him oral sex. Knowing the difference is the way it is said.
Containing, expressing, or using exclamation; as, an exclamatory phrase or speaker.
D: long-range goals
it means it does not care for others
A speaker's use of language to convince an audience