A．The man thinks going on a diet never works for him.
B．If the man did as the woman suggested, he would succeed.
C．The man did go on a diet before, but he failed.
D．They are sure that they can lose weight quickly.

A．Because he was lazy, greedy and bad-tempered.
B．Because he was shrewd.
C．Because he was good all the time.
D．Because he was a duck.