25 What does the underlined word this in the second paragraph refer to?
(A)Parts of speech
(B)Native speakers’ knowledge of grammar
(C)The ability to produce grammatical sentences consistently
(D)L2 learners’ knowledge of grammar
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統計: A(1), B(1), C(2), D(1), E(0) #1571163
統計: A(1), B(1), C(2), D(1), E(0) #1571163