被动语态：这个花瓶被谁打碎了?（英文）
问题描述：
被动语态：这个花瓶被谁打碎了?（英文）
答
This vase was broken by whom?
who broke this vase?
答
By whom was this vase broken?
答
By whom was the vase broken?
答
This vase was broken by who?
答
by whom was this vase broken?