I spent three hours swimming in the river.为什么用spent?急

问题描述:

I spent three hours swimming in the river.为什么用spent?急

你好,这道题的正确答案是:
sb spend some time doing sth
固定句型,某人花多长时间做某事
时态为过去式,所以用spent
我花了在个小时在河里游泳.