--If you have any trouble, be sure to call me.
–__________________.
| A．I am glad to hear that. | B．I will. Thank you very much. |
| C．I have no trouble. | D．I will think it over. |
--If you have any trouble, be sure to call me.
–__________________.
| A．I am glad to hear that. | B．I will. Thank you very much. |
| C．I have no trouble. | D．I will think it over. |
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