(　　)25. I spent a couple of months _________ out the answer to the question.
(A) to find　
(B) found　
(C) find　
(D) finding

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統計： A(21), B(6), C(3), D(57), E(0) #359737

詳解 (共 1 筆)

#931257

spend   後面一定要接   v-ing   (鐵律)

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