题文
I'm afraid I'll have to; my mom is calling me for supper.
| A．ring off |
| B．ring back |
| C．ring up |
| D．ring in |
推荐试卷
I'm afraid I'll have to; my mom is calling me for supper.
| A．ring off |
| B．ring back |
| C．ring up |
| D．ring in |
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