The child ________ his English book on the table.

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Our headmaster ________ his office until half past seven yesterday evening.

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Have you ever ________ to the USA?

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He has never ________ a pen before.

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Tony ________ a pet dog for three years.

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We'd better ________ late tonight.

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Be quick, ________ you'll be late for school.

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A leaf from a tree is enough ________ her very happy.

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Dogs are ________ difficult________ take care of.

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A football is not ________.

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