改为同义句
Each of the students in the class has been to the Great Wall．(改为同义句)
________ ________in the class has been to the Great Wall．
That amusement park has lots of tourists during the holiday．（就划线部分提问）
that amusement park have lots of tourist？
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？