You keep your mind clear.You wll memorise tiangs well(用if连接句子)
问题描述：
You keep your mind clear.You wll memorise tiangs well(用if连接句子)
答
If you keep your mind clear,you will memorise things well.(这里if就是如果不是虚拟语气）
If you have kept your mind clear,you would memorise things well.(这是虚拟语气,意思就是那人一定忘记了什么）