用所给词的适当形式填空

This pair of shoes is quite ________. Please show me another pair. (comfortable)

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My ________ of English is very poor. (know)

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Who is the ________ of the little restaurant? (own)

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This is a ________ discovery. (science)

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I don't think it is rewarding __________ too much money on that kind of thing. (spend)

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They are busy __________ using chopsticks now. (practice)

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Do you know how __________ at dinner in China? (toast)

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I am a stranger here. Everything is __________ to me. (family)

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I will go to see you as soon as I __________ Beijing tomorrow. (reach)

用所给词的适当形式填空

Mare is used to __________ chopsticks now. (use)