题目内容
完成句子，选出正确的单词，填入空白处。
His father is always ① with his work. Look! He is working ② in his study. (busy, busily)
答案：busy,busily
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题目内容
完成句子，选出正确的单词，填入空白处。
His father is always ① with his work. Look! He is working ② in his study. (busy, busily)