应该是going to bed吧.
going to bed作宾语,动名词作介词宾语.before作为一个介词,后面不能接动词.
其实也可以说成My mother often takes a long walk before she goes to bed.
应该是going to bed吧.
going to bed作宾语,动名词作介词宾语.before作为一个介词,后面不能接动词.
其实也可以说成My mother often takes a long walk before she goes to bed.