The boys loved the zoo.They ( )wild animals before.A.had never seenB.never seeC.never saw
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How many State-Protected animals are there in Huanglong?A. 9B. 21C. 30D. 12
Students are holding a ( ) discussion on how to protect the global ecological system.A.warmB.hotC.heatD.heated
More and more people come to realize how important the ecosystem is and ( ) the activities to protect the environment.A.take partB.participate inC.involveD.participate
How to protect ourselves should be __________(教) at school.
What’s the best title of this passage?__________ .A. Kangaroos and koalas B. Beautiful Australia C.How to protect kangaroos and koalas
To protect wild animals is our duty.(改为同义句)__________ our duty__________ __________ wild animals.