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单项选择 较易0.85 引用1 组卷121
What are Mary and Helen _______ in the room now?     
They are _______ listening to music.
A.do; bothB.doing; allC.do; allD.doing; both
22-23七年级下·广东深圳·单元测试
知识点:all(全部的 adj.)both表示正在进行的动作both/all/none 答案解析 【答案】很抱歉,登录后才可免费查看答案和解析!