15. I'm sorry that I'm not able _______ help you.
(A) or
(B) for
(C) to
(D) with 

答案：登入後查看
統計： A(4), B(89), C(355), D(26), E(0) #1451273

詳解 (共 1 筆)

#1538931
be able to 為有能力...的意思，be(be動詞)
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