This worksheet teaches the particle 밖에 ("only, no more than"), which always comes with a negative such as 없어요, 안, or 못, and compares it with 만.
By the end, you can use N + 밖에 with 없어요, 안, or 못 to say "only (and that is not much)." You can also change a sentence with 만 into one with 밖에.
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