We work together to achieve our common purpose:_________world that is safer, cleaner and healthier than one we found.
A.the;the | B.a;不填 | C.a;the | D.the;不填 |
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We work together to achieve our common purpose:_________world that is safer, cleaner and healthier than one we found.
A.the;the | B.a;不填 | C.a;the | D.the;不填 |