The bus is ________ of people, there is no room to stand.

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If you want to learn English well, you must ________ read more, ________ speak more.

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The Greens taught me ________ to sing Christmas songs.

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Have you ever ________ West Lake?

No, never.

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Many people ________ much of their time on Internet.

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Mr Smith is ________ a teacher in the school, but he is still interested in teaching of the school.

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________ it rained hard this morning, Ann came to school very early.

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Once upon a time, there was a man ________ Hou Yi shot nine suns.

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Father Christmas is based ________ a real person in history.

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We have friends ________ the world.

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