关于下列四个省（区）的说法，正确的是（　　）

    Do you know how to make friends with a group of people? Let me tell you something about ____ friends with the group. Maybe it's helpful to you.

    First you need to know what kind of group they belong ____ If people in the group are shy, never ____ them “Why don't you talk?”, ”Why are you quiet?” or “Why do you look shy?” They don't like such ____

    Next, remember that each group is different. They may use.____ words, like different things or have different ways of “hanging out”.

    Then ,the important thing is that you must try to be outgoing.____you are outgoing, you will become very popular. Remember,____wants to make friends with a quite shy person.

    Finally, find a right topic to talk ____others or the one you want to make friends with. For ____you can talk with them about the weather, their hobbies or their school lives.

    If you do all these above, you will make more friends and get____well with them.

一物体在光滑斜面上初速度为0，从斜面顶端匀加速下滑，当下滑距离为L时，速度为V，那么速度为2V时，物体沿斜面下滑的距离是（  ）

如图，已知AB为圆O的一条直径，以端点B为圆心的圆交直线AB于C、D两点，交圆O于E、F两点，过点D作垂直于AD的直线，交直线AF于H点．

（Ⅰ）求证：B、D、H、F四点共圆；

（Ⅱ）若AC=2，AF=2$\sqrt{2}$，求△BDF外接圆的半径．

拆字游戏。

它们可以拆成什么字？

秋____  ____

村____  ____

好____  ____

朋____  ____