| A．Excuse me | B．Thank you |
| C．I’m sorry | D．Excuse |
| A．key | B．keys | C．a key | D．a keys |
| A．This is | B．it is |
| C．it’s | D．it isn’t |
| A．on | B．in | C．at | D．for |
| A．is | B．are | C．was | D．were |
| A．to; to | B．/; to | C．at; in | D．to; at |
| A．something to eat | B．nothing to eat |
| C．anything to eat | D．anything |
| A．on | B．in | C．to | D．at |
| A．Not at all. | B．Thank you. |
| C．Yes, I do. | D．The same to you. |
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