French language Q&A Forum

I have a question on this writing challenge

https://french.kwiziq.com/my-languages/french/exercises/judge/8/3366502?response=458725&page=11

I needed to translate this sentence : but my sister goes swimming every Saturday."

I answered 

mais, ma soeœur fait la natation Samedis.

I once learnt (but I am not sure my memory is correct)

faire + activities = the activities you do regularly

aller + nager = occasionally

Am I wrong>?

Il fait du tennis (fait + de le)

Il joue au tennis (joue à + le)

I thought whether we use partitve articles should depends on the thing we modify instead of the verb

It doesn't appear possible to rewind this sound clip. For me personally , that makes it much less useful, as you have to replay the whole thing from the beginning.  ( I have tried Firefox and Microsoft edge, so I don't think it's the web browser).

Could we please have an interface that allows us to rewind the sound ? Thanks Paul.

I know I am a little old-fashioned about this, but even though "it sucks!" is used more and more frequently these days in colloquial American speech, I think it is still a fairly vulgar expression.  Does "ca craint" have the same level of vulgarity as "ca suce" in French?  I'm just curious.

Walter B.