Write me a letter and let me know how you are getting on with your stuides中为什么不用动名词Writing做主语?我要详细……
问题描述：
Write me a letter and let me know how you are getting on with your stuides中为什么不用动名词Writing做主语?我要详细……
答
这是一个祈使句,就是要求别人做……,所以,用原型.