Hi everyone, I'm writing a Christmas card and I'd like to say, "I hope all is well in Paris and that you had a good summer and fall." What I came up with is: "J'espère que tout va bien à Paris et que vous avez passé un bon été et automne." Can I say "un bon été et automne," with "bon" in the singular, even though I'm talking about two seasons? Or should I rather say, "un bon été et un bon automne," or "un bon été et un automne agréable" or something like that? Any help will be much appreciated, thanks!