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I saw him doing his homework when I passed his window.
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I saw Mary going upstairs then. (主è°å
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Tell the children playing outside not to make too much noise. = Tell the children who are playing outside not to make too much noise.
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He stopped to do speak to me.ï¼æªåçï¼å°è¦åçï¼
He stopped speaking to me.(å·²åçï¼
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His uncle is twice as old as he.
The bag is twice the size of that one.
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