--He isn't a friend of yours, is he?

--________ We have known each other since the first day we came to this school.

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She's never been to Shanghai before, ________?

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She's a bit worried about her son, ________?

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We were very ________ about the ________ match.

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She's very ________ about _______ to a new place.

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His father has a new job in Shanghai. He _______ there for a few months.

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They _______ Foshan many times.

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Mr Smith _______ China for many years.

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Have you seen John _________.

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It takes quite a bit _______ time to read the book.

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