The Koala is ____ tree-climbing animal which lives in ____ Australia.
A.a, the | B.the, the | C.不填,不填 | D.a, 不填 |
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The Koala is ____ tree-climbing animal which lives in ____ Australia.
A.a, the | B.the, the | C.不填,不填 | D.a, 不填 |