6. This is his fourth _____ to learn the song. He has already tried three times in the past month.
(A) clearance
(B) plantation
(C) attempt
(D) monastery
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統計: A(5), B(51), C(268), D(21), E(0) #2897508
統計: A(5), B(51), C(268), D(21), E(0) #2897508