用they改写 Does he have a black pen?they a black pen?
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用they改写Doeshehaveablackpen?theyablackpen?用they改写Doeshehaveablackpen?theyablackpen?用they改写Doeshehavea
用they改写 Does he have a black pen?they a black pen?
用they改写 Does he have a black pen?they a black pen?
用they改写 Does he have a black pen?they a black pen?
Do they have black pens?