1 students don't study texts.
What do students study?
2 student studied some texts.
student didn't study any texts.
Did student study any texts?
3 students haven't studied the texts.
What have students studied?
4 students weren't studying the texts.
Were students studying the texts?
1 students don't study texts.
What do students study?
2 student studied some texts.
student didn't study any texts.
Did student study any texts?
3 students haven't studied the texts.
What have students studied?
4 students weren't studying the texts.
Were students studying the texts?