I also tried to speak English in front of the mirror which seemed to be very effective.

问题描述:

I also tried to speak English in front of the mirror which seemed to be very effective.

I also tried to speak English in front of the mirror which seemed to be very effective.
【我也试着在镜子前说英语,这似乎非常有效.】这是定语从句吗?是的,which 指代前面整句话which指代前面的话,应该用逗号隔开吧的确应该用逗号隔开