分类：教育/科学-学习帮助
问题：Lookatthoseclouds.It()(rain)soon 
回答：用It's going to rain
be going to do强调根据种种迹象来表达对于将来的推测,强调客观性.而will强调主观性.从这道题的Look at those clouds.可以看出是主观上的因素所以用be going to