"I hope that you will not do that."  You can say: "You won't do that, will you?" "Please do not go there." - "You won't go there, will you?"

"The German car manufacturer BMW has made an announcement that sparks a lot of people to talk" sounds quite awkward/ unusual to me, to be honest... Maybe we could have the input of other native speakers....?

I think you could use the 2nd one if you added "off", i.e.  "... that sparks off a lot of people talking."

In British English you don't have to use a comma unless the date comes in a sentence, e.g. She was born in London on 7th January, 2008.   In American English you usually write the month first and then the comma comes before the year, e.g.

Tom's comment about the accent might have been a pun triggered by Anton saying "Jolly stuffy in here..."   Stuffy , besides meaning lack of fresh air, can also mean prim , aloof , overly formal when referring to a person.

Caedmon, don't change anything. You speak English beautifully! If English is in fact not your first language, my guess is that you're from India... ?

On the same page means i n agreement . The speaker may mean that what you say is not always what you actually feel or believe.

You drink so much that it's written about in the gossip columns of high society magazines, is what I think this could mean.

Both even if  and even though  mean despite the fact that . Even if  can also mean despite the possibility that .

Maybe you're thinking of the word "current" in the sense of "belonging to the present time" (e.g. "current events")? However, I think "contemporary flavor" fits better here, i.e. "to give a thing a