35.__________ 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

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統計： A(126), B(28), C(23), D(81), E(0) #2081024

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現在事實相反的假設語氣If+主詞+ we...
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