Is a troop one person or a group, and what's up with obviously repetitive phrases such as "It is what it is"?

FOLLOW ALONG ON THE WEBSITE

Troops: http://bit.ly/troop-troops
Repetition: http://bit.ly/drink-drink

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SPONSORS

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GRAMMAR POP iOS GAME

Optimized for iPad: http://bit.ly/GrammarPopiPad

For iPad and iPhone: http://bit.ly/GrammarPop

GRAMMAR GIRL BOOKS

http://www.quickanddirtytips.com/grammar-girl-book-page