Uh huh.I don't have to trust you, I know way more people than you and have met way more people than you.Yes they do.No, they don't.It takes a very special sort of dedication to be in this country for several generations and still be incapable of learning the language.
Heck, just about every other group gets it down in a single generation.
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Nope. Usually at least two generations. Trust me.
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Highly unlikely. Highly.
Got any other funny jokes to tell?