柏林墙的正式名称是“反法西斯防卫墙”。肯尼迪曾经评价柏林墙是“世界上第一堵不是用于抵御敌人，而是用来对付自己的百姓的墙。”下列关于柏林墙的说法，正确的是

①二战中修筑柏林墙是为了对付希特勒法西斯

②柏林墙是二战后东西方冷战关系的标志性建筑

③柏林墙切断了东、西柏林之间的联系和自由往来

④1989年柏林墙被拆除，标志雅尔塔体系彻底完结

在空格中填上适当的单词，使对话完整正确。一空一词（含缩写词）。

J—Jack D—David

J:Christmas used to be my favorite time of year, but right now I feel terrible.

D:No wonder, Jack. It's our ____ Christmas away from home to study here. A ____ of situation would easily affect people's feelings.

J:What do you  ____ most as Christmas is coming, David?

D:Of course, my family. I spent every Christmas with my family before this year.

J:Me, too.  ____ In the world is better than being with my family at Christmas time. D: At least, your brother is here with you.

J:That's true. Sometimes he can be boring to me, but now, ____ I do feel great to have him ____on this special day here.

D:Maybe he'll be here soon. I hope he will like the gift we bought for him.

J:I'm sure he will. He's always wanted a ____ so that he can record every ____ that moves him deeply here in Beijing, and he can ____ what's recorded with my family.

D:Perfect. In this way, your parents can see people's happy life in Beijing and understand China better. One more thing, our Chinese classmates are going to hold a Christmas party for us, and they want to spend Christmas with us.

J:They are friendly. I'm very glad to get their ____.I will go to the party with you.