托业考试

试题来源：托业-2
【单选题】 Ms. Nyguen had submitted her résumé before she ______the position was filled.
A．(A) will know
B．(B) knows
C．(C) has known
D．(D) knew

参考答案：D
网考网解析：
A past action that happens after a previous past action is in the simple past tense. Choice (A) is the... 查看试题解析出处>>