When secondary school students are doing seatwork, teachers usually answer questions or sit at their own desks and ______.

A．Going to the class together tonight.
B．They both not going to the class.
C．The woman just forgetting about the class.
D．Attending the class, but slipping from it halfway.

A．That such positions are usually well paid.
B．That such positions help them get better jobs.
C．That they will then be able to stay longer in the university.
D．That they hate the constant pressure and strain of their study.