Before he became successful and rich, he _______ unemployed for many years. 
(A)has been
(B)had been
(C)could be
(D)would have been

答案：登入後查看
統計： A(45), B(205), C(5), D(8), E(0) #375714

詳解 (共 2 筆)

#464704
在他變得成功和富有之前,他曾失業多年
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#461987
之前，他變得成功和富有，他已經失業多年。
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