"Are you free to come to my place this Saturday？"Aaron asked me．（改为间接引语）
Aaron asked me free to go to his place that Saturday．
The invention of smart phones changed the world in many ways．（改为一般疑问句）
the invention of smart phones the world in many ways？
"When will you finish the project on Internet safety？"the official asked．（改为宾语从句）
The official asked I finish the project on Internet safety．
A middle school student invented a new robot last term．（改为被动语态）
A new robot by a middle school student last term．
The Chinese graduate became a star because of his speech at Harvard．（对划线部分提问）
the Chinese graduate become a star？
They like playing basketball in the club better than going home after school．（保持句意不变）
They playing basketball in the club going home after school．