puzzle - something that is difficult to understand or explain, baffle - to confuse somebody completely, remote - far away from places where other people live, extraordinary - unexpected, surprising or strange, trace - no mark, object or sign that shows somebody or something existed or was present, solve - to find a correct answer or explanation for something, lighthouse - a tall building near the coast or shore with a flashing light at the top to warn ships of rocks and other dangers, keepers - somebody whose job is to take care of something, rain jacket - a piece of clothing designed to protect the upper body from rain and wet conditions,

Upper Intermediate - 1B - Review Vocabulary

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