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

—What's the matter, Bill? Why are you sitting on the ground?

— 　1　

—I'm sorry to hear it．Is there anything I can do for you?

— 　2　

—Is he in his office or at home?

— 　3　

—I've got it down．　　 Now I'll run to the nearest public phone．Wait for me here．

—　　　　　　　4　 It 'll save time．

—That's a good idea．I'll be back soon．

— 　5　

—Don't worry．I won't．

A.I have walked a long way and I am terribly tired.

B．All right! You can ride my bicycle．

C．Yes．Will you please call my father and ask him to come at once?

D．You must make sure that you go very fast．

E．I fell off my bike and hurt my legs．

F．You mustn't ride too fast．

G．He's in his office and his telephone number is 553246．

Please wait here. I’ll be back in _____ hours.

  　A. two and half an           B. two and a half

  　C. half and two              D. two a half

—Could you ________ keep an eye on Lucy? I'll be off to work .

—No problem. I'll be with her, darling.

[　　]

—When shall I phone you, morning or afternoon?

　 — ________. I’ll be in all day.

　 A. Each　　 　　 B. Both　　 　 C. Neither　　 　 D. Either