It is a pleasure for me to tell you how much i enjoyed my stay with your family during . pleasure 是名词,前面要加冠词,另一种改法是把pleasure换成pleasant 这句话是一个宾语从句,引导词多用了一个that,画蛇添足了.
how 即为引导词,that重复。 tell 加宾语从句并非都是that,例如: can you tell who is over there? 这里指“分辨得清” i cannot tell what will happen. 这里指“断定” 另外,pleasure为名词,可加上冠词a,或者,改成 it is my pleasure to tell you how much...