trouble 可不可数?a lot of trouble要不要加s?

trouble 可不可数?a lot of trouble要不要加s? trouble可数吗?为何有a lot of trouble? What a lot of trouble he is causing 这里的 trouble 为什么不是复数 加 S trouble 可不可数? trouble可不可数 difficulty,trouble可不可数啊? He used to cause a lot of trouble中trouble是可数名词吗?cause 可以用mak Mrs.Brown was having a lot of trouble with her skin（皮肤）,so s a lot of 和some是不是都可以修饰不可数名词和可数名词吖 There is a lot of trouble He is causing a lot of trouble!怎样改为感叹句 he used to cause a lot of trouble i am sorry to __you a lot of trouble