The revolutionaries believed that they could turn over the old government only fighting against the

The revolutionaries believed that they could turn over the old government only fighting against the kings cruel, not ________ peaceful actions．

A.with; by

B.by; by

C.on; with

D.in; with

答案及解析： B

解析：

by表示“依靠，凭借”，说明某个动作的完成或执行方式。