1 To__________ your level of competency in speaking a foreign language, you need to practice it every day.
(A)drop
(B)violate
(C)assign
(D)maintain

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難度： 非常簡單

最佳解!
	Pow 大一下 (2019/11/13) competence 能力，勝任，稱職[☆]；【★】... (內容隱藏中) 查看隱藏文字

	3F David-Hsu 國二下 (2020/02/04) 1要達到★★★★★★★★★，... (內容隱藏中) 查看隱藏文字
	4F Lion Tiger 國二上 (2021/09/03) To maintain your level of competency in speaking a foreign language, you need to practice it every day. 為了維持你外語口說的能力，你必須每天練習。檢舉

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