If I ____ (be) you, I ____ (study) harder for the exam. She____ (travel) around the world if she ____ (have) more money. If they ____ (know) the answer, they ____ (tell) us. He____ (buy) a new phone if it ____ (cost) less. What ____ you ____ (do) if you ____ (find) a wallet in the street?

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