在△ABC中，点D、E分别在边AB、AC上，下列条件中不能判定DE∥BC的是（　　）

实验室中固体药品应放在 ____瓶中，取用时块状固体用 ____取，粉末状固体用 ____取．液体药品应放在 ____瓶中，对于见光容易分解的溶液应放在 ____色的瓶 中．

情景交际

从方框中选择适当的选项补全对话。

a．It's my favourite play.

b．we decided to see Romeo and Juliet.

c．Yes, I'm sure they will.

d．We went to the Globe Theatre last night.

e．I tried to understand it but it was very difficult.

A: Hello, Daming. Are you enjoying your visit to London?

B: Thank you for asking, Betty. I'm having a great time. ____

A: Oh, yes, it's great. A lot of tourists want to go there.

B: Yes, my uncle offered to take us, and ____

A: Did you understand the play?

B: Well, ____ But I know the story.

A: I hope to see Romeo and Juliet, too. ____

B: Will your parents agree to take you?

A: ____