15.
A. She used to have some name cards.
B. She didn't like to give her name cards to new friends.
C. She should have some name cards for convenience.
D. She gives name cards to some new friends.
16.
A. Professor George's class is very interesting.
B. Professor Jordan's class is more interesting.
C. He hasn't attended Professor Jordan's class.
D. He hasn't attended Professor George's class.
