看图读对话，判断句子正(√)误(×)。

Mr. Li: I have some biscuits, some apples and some juice. What do you have, children?

Lily: I like bananas. I have some bananas and sandwiches(三明治).

Tom: I like milk. I have some milk and bread.

Mr. Li: What about you, Lisa?

Lisa: I like eggs. I have some eggs and water.

Mr. Li: OK. Let's eat together.

My mother always wants me _________ the violin. I don't like it at all（根本不）.

如图，P是⊙O外一点，PA是切线，A为切点，割线PBC与⊙O相交于点B，C，PC=2PA，D为PC的中点，AD的延长线交⊙O于点E，证明：

（Ⅰ）BE=EC；

（Ⅱ）AD•DE=2PB²．