One astronaut who joined the program in 1996 ______ only after he had been applying for 12 years. ( )

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问题 One astronaut who joined the program in 1996 ______ only after he had been applying for 12 years. (    )

选项 A、has been accepted
B、had been accepted
C、was accepted
D、is accepted

答案C

解析 译文:1996年参加这个项目的一名宇航员在提出申请12年后才被接受。此句中had been applying for表示“过去的过去”,“宇航员被接受”发生在过去,故用一般过去时的被动态was/were done。答案为C。
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