16、 I’m afraid that won’t be possible, much as we’d like to.尽管我们很想这样做，但恐怕不行了。

17、 We’ve got to report back to the head office.我们还要回去向总部汇报情况呢。

18、 Thank you for you cooperation.谢谢你们的合作。

19 、We’ve arranged our schedule without any trouble.我们已经很顺利地把活动日程安排好了。

20、 Here is a copy of itinerary we have worked out for you and your friends. Would you please have a look at it? 这是我们为你和你的朋友拟定的活动日程安排。请过目一下，好吗?