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 do you think I ought to see first in London? I'm told one ought to see the British Museum. Do

      you think I shall have time for that?

—   1    But if I were you, I should leave that for some other day. You could spend a whole day there.

    It's much too big to be seen in an hour or so. 

—  I suppose it is.   2   .

— That's not a bad idea. You could spend a couple of hours there comfortably, or even a whole afternoon,

     watching the wild animals and all those birds. You could have tea there too.

— I'll do that, then. How do I get there?

—   3    Where are we now? Oh, there's that big building. I think your best way from here is to take Baker

    Street.

—   4   .

— Oh, no, a quarter of an hour or so, but, if you're in a hurry, why not take a taxi?

— I think I will.    5   Taxi!

A. Let me see.

B. Well, you might.

C. What time is it now?

D. Is it much of a walk?

E. Ah, here's one coming.

F. What about going to the Zoo?

G. Must I stay in London for long?