1.When are Susan and Harry picking you up, Marilyn?
【参考译文】Susan和Harry什么时候来接你们，Marilyn？
【语法分析】本句是动词的现在进行时表示将来时，相当于“When Susan and Harry will pick you up? ”
如下面的：They're coming by at six tomorrow morning, 他们明天早晨六点钟过来。

2.Camping out is such great fun.
【参考译文】露营是件很好玩的事。
【语法分析】“sth. is great fun”这种表达在口语中很常见，相当于“sth. is very funny”.

3.We'll have a great time camping out, I'm sure.
【参考译文】我相信我们会在露营时玩得很开心。
【语法分析】"sb have a great time （ in）（doing）sth"在口语中也很常用，意思是“某人做某事很开心”。

4.It will be my great pleasure.

【语法分析】意思是“我会很开心的”。还可以用"it's my (great) pleasure to do sth./in doing sth. "

5.Do we have a bottle opener on the list, Marilyn?

【参考译文】清单上有开瓶器吗，Marilyn？
【语法分析】这里用"Do we have..."而不是“Is there...”，语气更为委婉。

6.And let's not forget our cassette player and some tapes.

【参考译文】还别忘了带上我们的卡式录音机和一些录音带。
【语法分析】这里用"let's not..."而不是“don't...”，有商量、建议的意味，语气更委婉。