Correct: sleeps, runs, speaks, chooses, listens, arrives, watches, catches, writes, wakes up, gets up, teaches, plays, moves, behaves, 第三人称单数, third person singular, Incorrect: sleep, run, speak, choose, listen, arrive, watch, catch, write, wake up, get up, teach, play, pens, behave, cars, houses, trees, glasses, windows,

PEP - grammar items - 第三人称单数 third person singular

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