A、The cook agreed to serve the soup to mother.
B、The matter of lunches was successful.
C、Her father persuaded her mother successfully.
D、The way the author thought of was effective.
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正确答案
试题解析
划线部分表示,妈妈在尝了学校的午餐后坚定地说要第二天就去处理学校午餐的问题,这证明了段落前文提到的“The plan worked perfectly.”,说明作者的方法起作用了,D项为正确答案。