It       a Saturday afternoon in May ______ Margaret could arrange for me to meet her elder sister

1. A.
   was until, when
2. B.
   was until; that
3. C.
   was not until, when
4. D.
   was not until; that

It       a Saturday afternoon in May ______ Margaret could arrange for me to meet her elder sister.

  A．was until, when                                    B．was until; that  

  C．was not until, when                                     D．was not until; that

 It       a Saturday afternoon in May ______ Margaret could arrange for me to meet her elder sister.

It       a Saturday afternoon in May ______ Margaret could arrange for me to meet her elder sister.

A. was until, when B. was until; that   C. was not until, when        D. was not until; that

It       a Saturday afternoon in May ______ Margaret could arrange for me to meet her elder sister.

       A．was until, when                    B．was until; that  

       C．was not until, when               D．was not until; that