It is absolutely essential that 怎么看出是虚拟语气啊
问题描述:
It is absolutely essential that 怎么看出是虚拟语气啊
答
It is essential that 好像跟 it is suggested that一样,都是建议类型的虚拟语气,强调应该怎么做.
下面接sb should do sth,should可以省略.
It is demanded / necessary / a pity that 也是这一方面的.