36. Valentine’s Day, _____ on February 14, has been around for centuries as a celebration of romance and love.
(A) falls
(B) fallen
(C) falling
(D) which fall
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統計: A(60), B(80), C(286), D(65), E(0) #3436021
統計: A(60), B(80), C(286), D(65), E(0) #3436021