阿摩線上測驗
23 A study undertaken by Roger Brown discovered that most children acquire morphemes in approximately the same order. The
first grammatical morpheme to develop is ______.
(A) –ing
(B) –ed
(C) –s
(D) –ly
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統計： A(192), B(15), C(105), D(4), E(0) #596936
統計： A(192), B(15), C(105), D(4), E(0) #596936
