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Answer:
the simple subject is "if you need one"
and the simple predicate is "then buy a cell phone"
Explanation:
The simple subject is "if you need one" because it only tells the beginning.
The simple predicate is "then buy a cell phone" because it is at the end and doesn't tell why should you buy a cell phone!
your welcome!
jesus i cant believe i just read all of those lol
Answer:
I did nothing :D
wait, am I suppose to take that serious? O.O