Although none of these are completely correct, I'd choose D. to change tenses, an irregular verb has to change its spelling.
A is definitely incorrect - that is a rule about regular, rather than irregular verbs. B is also incorrect - there are no rules about irregular verbs so you have to learn them all by heart. C is incorrect because this is true for regular verbs as well, not just irregular.
This leaves us with D as the correct answer. Often, various forms of irregular verbs change more or less drastically. For example: see - saw - seen; ring - rang - rung, etc.
A speaker addresses a person for various reasons. For example, s/he may see that the listener is distracted and s/he may want the addressee to focus more on what s/he has to say. Moreover, it can happen in the middle of a speech, because what will follow is really important and s/he feels the need to underline it by asking for more attention from the listeners. Furthermore, the speaker may address a person because s/he may want to talk specifically to this person about something or in order to give him/her the stand.
So, from all the above, it could be concluded that the basic request of the speaker when s/he addresses a person is to grab the listener's attention.
Answer:
Warm and happy.
Explanation:
This is the statement that best describes the people who live in the Negro village. The author presents black people as being warm, happy and welcoming. Although they are not satisfied with their present social condition, they make the most out of it and still enjoy other things in their lives, such as family and company.
The appositive is a renaming of a noun, something that can be skipped without changing the grammatically and meaning of the sentence.
Here the appositive is "Dr. Walters" - it can be skipped:
My dentist was one of the speakers at Career Day
and it renames "My dentist" - answer B