Keep your passport in a secure place.A safe B special C good D different

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问题 Keep your passport in a secure place.

选项 A safe
B special
C good
D different

答案A

解析四个选项这里都可以放到place前面,句子都是通顺的,但语义各不相同,和secure (安全的)同义的只有safe—词。
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