The first decade in the 21st century is the one ______ many significant advances are made in China.

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

The first decade in the 21st century is the one ______ many significant advances are made in China.

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

The first decade in the 21st century is the one ______ many significant advances are made in China.

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

The first decade in the 21st century is the one ______ many significant advances are made in China.