When I got home, I saw my father _________TV.

If you want to make friends, what should you do?
Steps:
★Try to look on the bright side of things.
★Look for groups in your area that do something you are interested in. Maybe you will learn some new skills and meet some people who have many things in common with you.
Tips(建议，诀窍):
★Contact your friends at least once a week by telephone or e-mail, or by visiting them to find out how they are. Remember important things about them such as birthdays and weddings(婚礼).
★If you have an argument with your friends, say sorry first.
★Remember never to leave old friends just because you have made some new ones.
★Listen to others carefully. It's better to be a good listener.
★Be different. Don't try to change others through your own ideas.
Warnings:
★Never ask or give away(泄密) a friend's secret.
★Don't be afraid to stand up for what is right.
★You'd better not give your ID number, phone number or your home address to people that you have just made friends with.
根据短文内容，从题中所给的A、B、C、D四个选项中，选择最佳答案。

如图，在正方形网格中，每个小正方形的边长都为1

（1）如图1，两个半径为1的圆相交，则阴影部分的面积为____ ；

（2）图2是以（1）中的图形为基本图形，通过一组图形变换得到的，这组变换可以是____ ．（写出一组即可）（填入序号）．①轴对称变换；②平移变换；③旋转变换．