摘要： –Do you know the woman in the red dress? -Certainly. She’s Mrs. Xu, she teaches Chemistry. A. our B. us C.we

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---Do you know the woman in the red dress?
---Certainly．She's Mrs Xu．She teaches ________ chemistry．

－Do you know the woman in the red dress?

－Certainly. She's Mrs Xu. She teaches ________ chemistry.

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---Do you know the woman in the red dress?---Certainly．She's Mrs Xu．She teaches ________ chemistry．