代词指代例题：
1.The more you run at high altitudes, the more our bodies and lungs will acclimate to changing elevations.
A.The more you run at high altitudes
B.The more we run at high altitudes
C.The more high altitudes run
D.As the running at high altitudes increases
E.As people run more at high altitudes
2. The study undertaken by the Department of the Interior will involve examination and tagging of the California condor in order to obtain information about their daily movements，foraging habits，and sites where they nest.
A . their daily movements，foraging habits，and sites where they nest
B. their daily movements，foraging habits，and their nesting sites
C. its daily movements，foraging habits，and nesting sites
D. its daily movements，foraging habits，and about nesting sites
E. daily movements, foraging habits，and sites in which there are nests
3. Although the bite of brown recluse spiders are rarely fatal, they cause chronic flesh wounds, posing the greatest danger to the infant and elderly，who are particularly vulnerable to its poison.
A. brown recluse spiders are rarely fatal, they cause chronic flesh wounds，posing the greatest danger to the infant and elderly, who are particularly vulnerable to its
B. brown recluse spiders are rarely fatal, they cause chronic flesh wounds，posing the greatest danger to the infant and elderly, who are particularly vulnerable to their
C. the brown recluse spider is rarely fatal, it causes chronic flesh wounds，posing the
greatest danger to the infant and elderly, who are particularly vulnerable to their D. the brown recluse spider is rarely fatal, it causes chronic flesh wounds，posing the greatest danger to the infant and elderly, who are particularly vulnerable to its
E. the brown recluse spider is rarely fatal, they cause chronic
4. If additional deposits of oil are found, it will expand the amount that can be used as fuel and reduce the price of oil, even if the deposits are not immediately tapped.g
A. it will expand the amount that can be used as fuel and reduce the price of oil
B. the amount that is able to be used as fuel will expand and the price of oil be reduced
C. it will cause an increase in the amount that is able to be used as fuel and a reduction in the price of oil
D. the amount that can be used as fuel will increase and the price of oil will drop
E. it will increase the amount of oil that can used as fuel and cause a drop in the price
5.The government imposed sanctions on a renegade nation last month after they violated the terms of a worldwide arms-control agreement.
A.imposed sanctions on a renegade nation last month after they violated
B.imposed sanctions on a renegade nation last month after it was violating
C.has imposed sanctions on a renegade nation last month after they violated
D.imposed sanctions on a renegade nation last month after that nation violated
E.imposed sanctions on a nation last month after they violated
6.Professor Schonle's son told the magazine that he had decided not to accept the new position, even though the current chairman had already resigned.
A.he had decided not to accept the new position
B.the decision was that his father would not accept the new position
C.his father had decided not to accept the new position
D.he decided that he will not to accept to be placed in the new position
E.it was decided about his not accepting the chairman's position。