The expert insisted that silkworms were first raised by a woman in ________ is now Hebei Province．

1. A.
   which
2. B.
   that
3. C.
   where
4. D.
   what

 The expert insisted that silkworms were first raised by a woman in___________is now Hebei Province.   

A. which         B. that                C. where      D. what

The expert insisted that silkworms were first raised by a woman in          is now Hebei Province.   

A. which    B. that C. where    D. what

The expert insisted that silkworms were first raised by a woman in _____ is now Hebei Province．

A．which          B．that           C．where           D．what

The expert insisted that silkworms were first raised by a woman in           is now Hebei Province.

A．which            B．that          C．where             D．what