- 問題詳情:41.When___________(explore)thecave,theyfoundavaluablemineral.42.I’llgivetheticketsto________wantsit.43.eisthefirstperson_________(arrive)andhewillarriveatthreethisafternoon.44.Theoldcoupleoftentakeawalkaftersupperintheparkwiththeirpetdog____...
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