13. Jenny never lets her children _______ alone in the river.
(A) played
(B) to play
(C) playing
(D) play

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統計： A(28), B(42), C(46), D(264), E(0) #3384242

詳解 (共 1 筆)

#6804942
題目解析 題目要求填入一個正確的動詞形...
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