13．Mr．Yang is a doctor．He cares a lot about not only others'health but also his own．He controls weight carefully．To him，it is the most important thing to do if one wants to enjoy good health．
Mr．Yang controls his weight in two ways：exercising and not eating much．As a doctor，Mr．Yang is too busy to go to the gym．He exercises by getting off the bus one or two stops early and walking the rest of the way to his office．
Besides，he doesn't eat much．Mr．Yang has a special habit．When he buys a belt，he asks the salesperson to punch a hole （打洞） in the belt at 90cm from the buckle （扣） end of the belt．By wearing this belt，he can always remind himself．He will stop eating if he feels the belt a little tight （紧的）．Mr．Yang thinks exercising works as well as eating less．
71．Mr．Yang cares much aboutC besides others'health．
A．money B．his work C．his health D．his friends
72．What does the underlined word"it"mean in Paragraph 1？D
A．To do exercise．
B．To be a doctor．
C．To walk to his office．
D．To control his weight．
73．Mr．Yang controls his weight inBway（s）．
A．one B．two C．three D．many
74．Mr．Yang asks the salesperson to punch a hole in his new belt，becauseD．
A．he is too heavy
B．the belt is too long
C．he doesn't like his new belt
D．it can remind him not to eat too much
75．Which of the following is TRUE？C
A．Mr．Yang takes exercise at the gym．
B．Mr．Yang walks all the way to work．
C．Mr．Yang uses a belt to control how much he eats．
D．Mr．Yang thinks exercising is better than eating less in controlling weight．
