填入一个适当的词补全对话，每空一词。
A: Hello, Huiyan. Are you free this Saturday?
B: Yes. What's up?
A: We plan to go out for a picnic. Why1come with us?
B: Good idea! By the way, what need I take?
A: Some useful things,2as foods, drinks, an umbrella and so on. Remember to wear sunglasses.
They can protect your eyes.
B: It's really kind3you. Besides,4and where should we meet?
A: Let's meet at 7:30 a.m. outside Harbin Amusement Park, shall 5 ?
B: Great! See you tomorrow.
A: See you.