简述操作技能形成的阶段。

口语交际
根据上下文的意思，从下列表格中选择适当的句子完成对话。将句子的序号填写在横线上。

A. How far is it from here? B. Yes./of course./sure. C. How much is it? D. You’re welcome./ It’s my pleasure. E. can you tell me the way to the post office?/How can I get to the post office? F. Where is the bus stop?

A: Excuse me. 小题1:           ? I want to send some postcards to my friends in America.
B: Just go straight and turn left. The post office is on the Bridge Street, next to a supermarket.
A: 小题2:                      ?
B: It’s about 20 minutes’ walk. But you can also take a bus to get there, if you like.
A: 小题3:                        ?
B: It’s over there. Look! Some people are waiting at the bus stop.
A: I see. By the way, can I make a long-distance call (长途电话) at the post office?
B: 小题4:               .
A: Thank you very much.
B: 小题5:                   .