We work together to achieve our common purpose: _______ world that is safer, cleaner and healthier than_______ one we are living in.
| A．the;/ | B．a; / | C．the; the | D．a; the |
We work together to achieve our common purpose: _______ world that is safer, cleaner and healthier than_______ one we are living in.
| A．the;/ | B．a; / | C．the; the | D．a; the |
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