collecting stamps is great fun有没有错

collecting stamps is great fun有没有错 In my opinion ,collecting stamps is a great fun for me 不加那个a 快点amy likes collecting stamps那有错 I like collecting China stamps哪里有错 My hobby is collecting stamps. Collecting stamps is my hobby. My hobby is collecting stamps my hobby is to collect stamps与my hobby is collecting stamps有 My aunt don't like collecting stamps.哪有错? To collect stamps is interesting与Collecting stamps is intere what fun it is 有没有错.what 后面不是要加名词吗? Collecting stamps is very interesting同义句