口语应用。（每小题1分，共5分）   

阅读下面对话，从方框内7个选项中选择5个恰当的句子完成此对话。

A：Can I help you?

B：I’d like three air tickets to Shanghai.

A： 小题1:  

B：On June 30th.

A：June 30th? Er, I am sorry. But all the tickets for that day are sold out.  小题2: 

B：Let me think. Yes，that’s Ok. 小题3:

A：The earliest flight will leave at seven o’clock in the morning.

B：Does it stop anywhere?

A：No. It will go straight to Shanghai.

B： 小题4:  

A：小题5: 

某机床厂在计划时间内要组装机床240台，工作7天后，由于改进了技术，每天比原计划多组装5台，结果提前一天完成任务，求原计划每天组装机床几台？