Ms. Nyguen had submitted her resume before she______the position was filled.

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问题 Ms. Nyguen had submitted her resume before she______the position was filled.

选项 A、will know
B、knows
C、has known
D、knew

答案D

解析 A past action that happens after a previous past action is in the simple past tense. Choice(A)is the future tense. Choice(B)is the present tense. Choice(C)is the present perfect.
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