题文
—Can you work out this math problem?
—Yes. ______
| A．It’s a piece of cake. | B．Do please. |
| C．It’s too hard. | D．Well done! |
—Can you work out this math problem?
—Yes. ______
| A．It’s a piece of cake. | B．Do please. |
| C．It’s too hard. | D．Well done! |
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