阿摩線上測驗
10. He _____ a book about international law for a long time.
(A) writes
(B) wrote
(C) have been writing
(D) has been writing
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統計： A(20), B(35), C(25), D(303), E(0) #2077729
統計： A(20), B(35), C(25), D(303), E(0) #2077729
詳解 (共 2 筆)
Yan Yu
#3643857
帶有 since 或 for 表時間的介系詞，通常用現在完成時式。for 表示一段時間
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