-“When are you going to give a talk on English grammar?”

-“I _______ on that already.”

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They thanked me for what my son ________.

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By the time the course ends, ________ a lot about each other.

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Recently we ________ each other every day.

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Our headmaster suggested ______ a basketball match the next week.

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We got home to find the whole house ______ upside down. Thieves obviously had broken in .

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You cannot expect you student _______ compositions in English since they cannot write single sentence correctly yet.

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I suppose you're not serious, _______?

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It's her very cleverness ______ makes it difficult for her to work with others.

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He was _______ to be unable to speak.

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