18. It begins at the age of six _____.
(A) and leads to the Elementary School Leaving Examination
(B) then leading to the Elementary School Leaving Examination
(C) which lead to the Elementary School Leaving Examination
(D) which leading to the Elementary School Leaving Examination
(E) when leading to the Elementary School Leaving Examination
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統計: A(158), B(20), C(45), D(20), E(75) #1950070
統計: A(158), B(20), C(45), D(20), E(75) #1950070