French language Q&A Forum

There seems to be a bit of discrepancy in the lessons, the exercises, and a response to a question in the discussions.

a)First the response in the discussion... where  Ainsi que  starts the sentence, it seems to make the verb straight forward.

Ainsi que l'italien et l'espagnol, le Français dérive du latin. Very unambiguous that the 'the french'  is the singular subject of the verb dériver.

b)The answers to the 'test recommended' provided me.

 Les Etats-Unis, ainsi que  l'Angleterre, sont un pays anglophone. Here the verb is 'plural BECAUSE  the subject is  The United States, but the associate nouns and adjectives are singular because it is ONE  COUNTRY.  Ok so far I think.

c) But in the discussion.

Le français ainsi que l'italien dérivent du latin ( French and Italian) hence a plural verb.

vs

"L'Angleterre, ainsi que la France, a combattu l'Allemagne en 1914." in the lesson.

 Shouldn't the verb be 'ont combattu' . And if so maybe a short comment re the  gender and plurality of the verb be added to the lesson.

I used constater to say I noticed the strange transaction. It’s not offered as an alternative to remarquer. Can you tell me if it is wrong to use it in this case. 

Similar question in the quiz (instead a female buying coffee), but when I chose the "some" option (she buys some coffee), I was not granted the score. That's contradictory and confusing. Which is it? With the "some", or without?

I've always learned that you would never say someone is "très excité", as it has a more sexual connotation. As a result, I've avoided saying this phrase for 13+ years.

Can you really say this without someone doing a double take? Or is there a better way to say this? 

I just did a quiz that says “Ils partent leur travail à 19h“ is wrong & “Ils quittent leur travail à 19h” is the correct answer. Can someone please explain why this is so? I can’t see why “partent” is wrong given what the lesson content says.