Hello, I _______ you ______ in London. How long have you been here?

1. A.
   don’t know; were
2. B.
   hadn’t known; are
3. C.
   haven’t known; are
4. D.
   didn’t know ; were

 Hello, I____ you____ in London. How long have you been here?

A. don’t know; were             B. hadn’t known; are 

C. haven’t known; are            D. didn’t know; were

Hello! I ________ you _______ in London. How long have you been here?

   A. don’t know, were                     B. hadn’t known ,are   

   C. haven’t known ,are                   D. didn’t know, were

 Hello, I____ you____ in London. How long have you been here?

A. don’t know; were             B. hadn’t known; are 

C. haven’t known; are            D. didn’t know; were

Hello, I _________ you _________ in London. How long have you been here?

A. don’t know; were         B. didn’t know; were

C. haven’t known; are                D. hadn’t known; are