判断题
正确(↓↓↓ 点击‘点击查看答案’看答案解析 ↓↓↓)
A.His wife was cooking（降调）when we walked into the kitchen.（降调） B.His wife was cooking（降调）when we walked into the kitchen.（升调） C.His wife was cooking（升调）when we walked into the kitchen.（升调） D.His wife was cooking（升调）when we walked into the kitchen.（降调）
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