----Do you know ________ man who is standing under the tree?

???????? ----He is my new English teacher, Mr Hu.

A. a????????????? ????????????? ????????????? ????????????? B. an????????????? ????????????? ????????????? C. the ????????????? ????????????? ????????????? D. /

Do you know _____

----Do you know ________ man who is standing under the tree?
----He is my new English teacher, Mr Hu.

Do you know _____

1. A.
   how can I get to the library?
2. B.
   why didn’t he go there?
3. C.
   what the teacher said?
4. D.
   who is she