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Complete this enthusiastic reunion!
Alex spots his friend Jamie at the campus café after a long summer break. Select ALL the natural greetings Alex can use to show he hasn't seen Jamie in a long time.
The correct answers are Long time no see! and It's been a while!
"Long time no see!" is a very common fixed idiom in spoken English. Because it's a fixed expression, you cannot change the words to "Much time no see!"
For the last option, the preposition since is only used with specific points in time (like since June or since Tuesday). For a duration or length of time, you must use for ("I haven't seen you for a long time!").