@, at (email address symbol), ., dot (website / email separator), _, underscore (bottom line code), -, hyphen / dash (connecting line), 00, double-oh / double-zero (phone digits), LL, double-L (spelling double letters), 555-8200, five-five-five, eight-two-double-oh, johnson_steven@star-tech.com, johnson_steven at star-tech dot com

Exercise 1B.1

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