选择恰当的句子完成对话。

A. It's a "water party". B. When's her birthday? C. That sounds interesting. D. You can bring some snacks. E. What time does the party begin?

A: Hi, Robert. We want to have a birthday party for Mary.

B:

A: It's on 25th July. Can you come to the party?

B: Sure.

A: It begins at 4p. m. We can play many water games at the party.

B: Can I bring anything?

A:

B: OK.