This is Mary is invitation的问句是什么

This is Mary is invitation的问句是什么 This is Mary's invitation This is my timetable.(的问句是什么?) Mary is an English teacher的问句是什么? My name is mary的一般问句是什么 This is a red desk.的问句是什么 急. ━━This is Thomas speaking 的 问句是什么? mary is happy改成问句 This is an invitation to look foolish请问这里的invitation怎么理解, this is john speaking的问句 This is a nice pen.的问句 This is Ben speaking的问句