You say it like this: Ac-sent
You pronounce "Marhaba" exactly as you have written it. The accent is Márhaba.
tee
You stress the 'a' when you pronounce it, but the word general does not have a written accent.
It depends on your accent. If you pronounce them alike, then they do, for you.
lovely with an accent
You pronounce it the same way in french as you do in english, only with a french accent.
Doo, but with kind of a French accent.
It is mey-tees. With the accent on 'tees' part
Deh-no-are or deh-no-our (depending on your accent really)
mercy + airy, with the accent on the third syllable.
i guess like the word are
In the British accent it is - ostin, oh-stin