1 . Our own experience working together on health, development, and energy the last twenty years has been one of the most rewarding parts of our lives.It has changed who we are and continues to fuel our optimism about how much the lives of the poorest people will improve in the years ahead.
What can be inferred from the last paragraph?
| A．The author believes the lives of the poorest will get better. |
| B．Much more progress will be made in the near future. |
| C．The work on health is the most valuable experience. |
| D．People’s efforts have been materially rewarded. |
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