____ we get on well with a number of people , we are usually friends with only a very few．

 _______ you get on well with a number of people, you are usually friends with only a few .

A. Since     B.  Where          C.  Before          D. While

____ we get on well with a number of people , we are usually friends with only a very few．

    A．As                 B．Once              C．Before           D．While

__________we get on well with a number of people，we are usually friends with only a few．

A．While    B．Since    C．If     D．As long as

________ we get on well with a number of people, we are actually friends with only a few．

1. A.
   When
2. B.
   As
3. C.
   While
4. D.
   Since