— Have you known each other for long?

      — Not very long, ____ we started to work in the company.

         A. after          B. before          C. when        D.  since

— Have you known each other for long?

   — Not very long, ____ we started to work in the company.

   A. after               B. before              C. when            D. since

1. — Have you known each other for long?

  — Not very long, ____ we started to work in the company.

   A. after     B. before   C. when  D.  since

—Have you known each other for long?

   —Not very long, ________we started to work in the company.

A. after                                  B. before                           C. when                   D. since

—Have you known each other for long?

—Not very long, __________ we started to work in the company.