Answer:
At the beginning of a presentation you should suit yourself and always look directly at the audience and speak with confidence. Make sure your introduction is easy to understand.
I would go with A hope dis helps
Answer:
Did i meet anybody during his long absence?
Affermative:
I met anybody during his long absence.
Answer:
A . . . (see below)
Explanation:
This depends on the sentence, in most cases, simply a period.