I'm a little confused about the usage of that and this.
For example: My teacher was giving out our predicted grade. When it was my turn, she said:"A, A*"
I asked "What does that mean?"
She said that "It means we think you will get an A* if you work hard enough"
Here, is the usage of 'that' correct? Or should I use 'this' instead? How am I able to tell?
Another example is when someone explains to me what a word means, I say "that actually makes a lot of sense" or should it be 'this'?
And also when I ask someone about something, should the other person say ''that or this is a good question" ?
Is there a common rule?