maybe if I stdied science,and not literature four years ago I would be able to give more help.单句改错
来源：学生作业帮助网 编辑：六六作业网 时间：2024/12/18 17:34:10
maybe if I stdied science,and not literature four years ago I would be able to give more help.单句改错
maybe if I stdied science,and not literature four years ago I would be able to give more help.单句改错
maybe if I stdied science,and not literature four years ago I would be able to give more help.单句改错
Maybe if I had stdied science,not literature four years ago I would be able to give more help.
虚拟语气中if引导的从句所描述的事情如果是与过去的事实相反,用过去完成时,所以studied前面要加上had.
这句话的主句部分（即后半部分）所描述的事情与现在的情况相反,要用would+动词原形,所以这里不用改动.
这句话的主句是对现在的虚拟,从句却是对过去的虚拟,这叫错综条件句.
and-->but.
be-->have been
studied 拼写有误
Maybe if I studied science but not literature four years ago, I would have been able to give more help
Maybe if I studied science,and not literature four years ago, I would [have been] able to give more help.