read this sentence from paragraph 1 of "YouTube: A World of Knowledge and Fun at Your Fingertips." If the original YouTube founders had had a crystal ball, they might not have been so quick to sign on the dotted line! The phrase "had a crystal ball" refers to the YouTube founders
believing in fortune tellers
owning something expensive
being dedicated and hardworking
knowing what happens in the future
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knowing what happens in the future
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