The hostess planned to (modern) ______ her house by buying a piece of new finiture.

A．Manager and secretary.
B．Teacher and student.
C．Waiter and customer.
D．Police and passer- by.

A．He must attend Professor Lowal’ s class.
B．He has to finish a paper.
C．He’s going to a conference.
D．He has to take a math test.