1.Whatever she says will not make any difference_____ our arrangements.

A. to               B. about             C. in            D. on.

2. I was told that there were about 50 foreign students________ Chinese in the school, most _______ were     from Germany.

  A. studied; of whom   B. study; of them   C. studying; of whom    D. studying; of them

3.In practice, few drivers ______ the traffic rules.

A.              settle             B. respect            C. direct          D. sign