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1. We know that exercise can affect your muscles => we know that exercise can affect OUR muscles (do not shift the pronouns suddenly.)
2. running, jogging, swimming, etc. / and the like / and so forth.
3. angry, happy, sad, in love, stronger, kinder, etc. / and so forth.
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For the first time as a commenter at LELB Society, I should admire your writing style, great knowledge and range of advanced vocabulary! I enjoyed your essay or article so much.
