根据对话内容，从对话后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。
(J =" Jim " D = David)
J: Hi, David. How are you?
D: 小题1: 
J: What are you going to do next weekend, David?
D: 小题2: How about you?
J: I don't know, either.
D: 小题3: 
J: Good idea! But where shall we skate?
D: The lake near our school is icy now. let's skate there.
J: All right.   小题4:  
D: Let's meet at the school gate.
J: 小题5: 
D: Let's meet at nine o'clock.
J: Great. See you next Saturday.
D: See you.

A．Where shall we meet?

B．Fine, thank you.

C．What time shall we meet?

D．How about skating on Saturday?

E. That's great. I agree with you.
F. I have no idea.
G. I'm going to visit my grandparent.