16. 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(34), B(15), C(19), D(386), E(0) #217882

詳解 (共 2 筆)

#246868

leap year  閨年

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#3964545
A leap year is a calendar year that contains an additional day
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