Ich mag keine Restaurants - would that be the correct negative response here? And if we were referring to certain restaurants instead of restaurants in general, would it then be "Ich mag die Restaurants nicht". Trying to get my head around the 'kein vs nicht' thing at the moment!
See Basics 2, tips and notes, including this tip:
- -s ending: most foreign-origin nouns will take the -s ending for the plural, usually with no umlaut changes. For example: "der Chef" (the boss) becomes "die Chefs."
Also, babelnation discusses plural German nouns:
- An exception to the above guideline are words that have a foreign origin (e.g. 'Auto', 'Zoo', 'Restaurant') or nouns that end in a vowel (e.g. 'Sofa', 'Kamera', 'Foto' ...). Those nouns simply add an 's' to their singular to form the plural: 'Autos', 'Zoos' or 'Fotos'.
You've gone through so many lessons and didn't know that der/die/das in plural is die (no, it doesn't change gender, the plural "die" happens to be the same as feminine "die", words don't change gender)? Have you been going through these lessons just to get lingots or something?
Im not a native speaker but seems I'm noy sure the male voice pronounced the s on the end. I say this as I'm trying to improve my listening so try to answer based on what I hear instead of reading the statement. You can guess I gave the singular in my answer and got it wrong.