下列能引起水源污染的是                                                                （　　）

①天然水与空气、岩石、土壤等长期接触　②工业生产中废水、废渣的排放　③水生植物的大量繁殖　④城市生活污水的排放和农药、化肥的施用不当　⑤雷雨闪电时产生的含氮化合物

—We missed a chance to win a goal.
—__________!

阅读下面的对话完成任务。

A: Excuse me, Susan. （1）Is this your backpack?

B: No, it isn't. It's Jack's. （2）My backpack is green.

A: Is your computer game in the lost and found case?

B: No, it's Jack's. And that white eraser is Jack's, too.

A: Do you know Jack?

B: Yes, I do. （3）他是一个英国男孩。He's in Class One, Grade Seven.

A: Oh, what's his telephone number?

B: 100-2116

A: Is Miss Miller his English teacher?

B: Yes, you're right.