根据句意及首字母提示填写单词。   

1. Probably you could write a d____________ of your best friend.  

2. She e_________ surprise when I told her how much it was.    

3. I was s_________ to hear that the Chinese Football Team got the first place.    

4. When I arrived he had a________ gone.    

5. Have you w________ to your American pen friend?

下列物质与其用途相符合的是 [ ]

①Cl₂-做消毒剂 ②AgBr-制胶卷，感光纸③AgI-人工降雨 ④碘酸钾-制作加碘盐⑤淀粉-检验I₂的存在 ⑥NaClO-漂白纺织物

A．②③④⑤⑥

B．①②③④⑤

C．②③④⑤

D．全部