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(135), B(186), C(622), D(143), E(0) #3436021
統計: A(135), B(186), C(622), D(143), E(0) #3436021