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theyhaveanartfestivalnextmonth.改为一般疑问句
thesportsdayis(onnovember9th).对括号部分提问
shehasabooksaleonmarch21st.改为否定句
mycousinhasaschooltrip(onmay16th).对括号部分提问
frankhasanenglishdayonmay9th.改为一般疑问句并作否定回答