14.
(A) Additionally, social interaction is important.
(B) However, learning grammar rules is unnecessary.
(C) For example, physical exercise helps improve focus.
(D) As a result, they need a strict study routine.
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統計: A(5), B(0), C(0), D(0), E(0) #3556256
統計: A(5), B(0), C(0), D(0), E(0) #3556256