A computer seldom gives wrong answers.（改为反意疑问句）
A computer seldom gives wrong answers,                ?
Memory is very essential in our life.（改为感叹句）
memory is in our life !
Joan entered for the Language Camp to improve her listening skills.（对划线部分提问）
Joan enter for the Language Camp?
Have you wondered? Why do Japanese take off their shoes before entering a house ?（改为宾语从句）
Have you wondered     Japanese     off their shoes before entering a house?
My cousin is so young that he can’t understand that.（保持句意基本不变）
My cousin isn’t            to understand that.
Taxi drivers can’t use the taxi booking apps during rush hours.（改为被动语态）
The taxi booking apps can’t            by taxi drivers during rush hours.
we, before, going over, the entrance exam, spent, all the subjects, much time.（连词成句）
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