She has gains much _____ because she keeps eating but never exercises. (weigh)
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My uncle is a travel agent. His job is to serve ________. (tour)
We’ve to work out a ________ to the problem. (solve)
All the great __________ are respected（尊敬）by the world. (invent)
When you study a foreign language, it’s important to make a good ____. (begin)
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