"ce" and "ceux" are pronounced the same. However, "ce" is singular and "ceux" is plural, so context should help on that ("sont" is plural).
"Ces" means "these", and is always followed by a noun ("these people", etc), so if there is no noun after it, it cannot be "ces". The pronunciation is also different (close to "say"), compared to the other two.
The correct way to pronounce ceux is by saying [say] while round you lips into an "oh"-sound shape.
Ce on the hand is shorter and sounds like [suh] or just the "s" sound: ce garçon" would sound like [s'gaRso(ng')] where (ng') stands for nasalization of the last syllable.
Ces sounds like [say]--or like [sayz] if followed by a word starting with a vowel : ces animaux [sayzaneemo].
According to Larousse:
- ce = [sə]
- ces = [sε] (plural of ce)
ceux = [sø] (plural of celui)
right, but it is more slang than it is an english word. contactions in english are used a lot as slang rather than proper english, because it makes sentences shorter and we can get more information out quicker. so it is english, just not proper, when duo uses proper english with little wiggle room for some slang, "Who're" is not proper. :-)