38 I am really ________ to you; I could not have finished the work in time without your help.
(A) generous
(B) grateful
(C) crucial
(D) scary
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統計: A(112), B(1155), C(60), D(31), E(0) #422269
統計: A(112), B(1155), C(60), D(31), E(0) #422269