— I can’t open this door, Jack. Could you give me a hand?
—_________.
| A．Thank you a lot. | B．Here you are. |
| C．That’s all right. | D．Of course. |
— I can’t open this door, Jack. Could you give me a hand?
—_________.
| A．Thank you a lot. | B．Here you are. |
| C．That’s all right. | D．Of course. |
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