Most of the roads were covered with thick snow, ____ made our journey more difficult.

A. one                   B. it          C. which            D. that

Most of the roads were covered with thick snow, ______ made our journey more difficult.

1. A.
   one
2. B.
   it
3. C.
   which
4. D.
   that

Most of the roads were covered with thick snow, ____ made our journey more difficult.

A. one                  B. it          C. which            D. that

Most of the roads were covered with thick snow,         made our journey more difficult.

A．one              B．it              C．which               D．that

Most of the roads were covered with thick snow, ____ made our journey more difficult.