一个正方体的平面展开图及正方体的直观图的示意图如图所示：

（Ⅰ）请将字母E，F，G，H标记在正方体相应的顶点处（不需说明理由）；

（Ⅱ）在正方体中，判断平面BEG与平面ACH的位置关系，并证明你的结论．

社会主义制度在我国确立的标志性事件是（　　）

补全对话，每空一词

A: Hello, Bill. What do you usually ____on weekends?

B: I usually exercise. How about you, Henry?

A: I always go ____.  I like shopping.

B: I ____ stand shopping. It's a ____ of time.

A: Some people think ____ is ____  girls. But I really like it. ____ ____8 do you exercise?

B: I exercise four times a week at school. ____ you often shop?

A: ____ often. About once two weeks. I have a lot of homework to do.

不等式2x＜﹣4的解集在数轴上表示为