5. February normally has twenty-eight days, but every fourth year, ______ has twenty-nine.
(A) there
(B) its
(C) is a leap year
(D) a leap year, it

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統計： A(14), B(11), C(9), D(189), E(0) #568774

詳解 (共 2 筆)

#4582964
leap year 為閏年
(共 15 字，隱藏中）
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#818014
 題目應為:February normally has twenty-eight days, but every fourth year, ___________has twenty-nine. 
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