45. __________ you should have no trouble with the difficult work.
(A)Knowing this
(B)If you are
knowing this
(C)From knowing this
(D)If you had known this
詳解 (共 4 筆)
未解鎖
原句：After you had kno...
未解鎖
分詞構句,答案選A.(B)know沒有進...
未解鎖
If you know this,you...
未解鎖
原句應該是：If you know th...
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