-Excuse me, where is Dr Smith's office?
-________.
A: You can't ask me. I don't know, either.
B; Please don't say so.
C; Sorry, I don't know. But you can ask the man over there.
Excuse me, can you tell me where the nearest bus stop is?
I'm sorry, I have no idea. I().
A. don't know
B. am a stranger here
C. am not
A.what could we do
B.where can we do
C.what we can do
D.when can we do
B、Can you tell me where to
C、Where should I
D、What should I
A、Do you want to buy something?
B、Excuse me, what are you doing?
C、Are you just looking around?
D、Is there anything I can do for you?
A.I can
B.can I
C.would I
D.I would
A. Do you have any advice?
B.Would you please do me a favor?
C.Where on earth are you going tonight?
D.Could you send me twenty dollars until Wednesday?