根据下面对话中的情景，在空白处填入适当的语句，使对话内容完整。

(Jenny and Nancy meet on the street.)

J= Jenny; N=Nancy

J: Hello, Nancy. 1_____?

N: Fine,thanks, Jenny.

J: I heard you went somewhere for vacation. 2_____?

N: Well, I have been to Hainan Island with my cousins. There are too many

    exciting things there, especially diving (潜水) in the real sea!

J: 3_____! My parents and I will go there, too. What should we take?

N: A camera, sunglasses, umbrellas and some cool clothes.

J: OK, thank you. 4_____?

N: You can get there by plane. Because it's too far away. 5_____.

J: Thank you! I think we sure will.

铬酸钡的精制过程中加入氢氧化铵中和至溶液呈蓝色，沉淀析出。用温水和冷水分别洗涤后，用定量滤纸过滤，烘干备用。