－What's wrong ________ your clock? －It's doesn't work.

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My brother is ________ work now, not ________ home.

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________ boy has ________ apple. ________ apple is big and red.

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________ do you like about China?

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I know ________ and her sister. They are ________ friends.

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________ do you have math? We have math at 10:00.

你们什么时候上数学课？10点钟．

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________ is your math teacher? Mrs. O'Sullivan.

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________ do you like P. E.?

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________ is your favorite subject?

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My favourite subject is math. What's ________?

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