明天我有事情要做。
I have something to do tomorrow.【非地道表达】
I am tied up all day tomorrow. 【地道表达】
用I have something to do. 来表示很忙,这也是中国式的说法。因为每时每刻我们都有事情要做,躺在那
里睡大觉也是事情。所以可以说“I'm tied up.” 还有其他的说法:
I'm afraid I can't make it at that time. I'd love to, but I can't, because I have to stay at home.