It took us 2 hours to finish the work.（改同义句） We ____ 2 hours ____ the work.
It took us 2 hours to finish the work.（改同义句）
We ____ 2 hours ____ the work.
Tom is taller than any other boys in his class.（改同义句）
Tom is ____ _____ boys in his class.
They had lunch at school yesterday.（改否定句）
They ____ ____ lunch at school yesterday.
The Olympic Games are held ( every four years ).（对括号提问）
_____ _____ are the Olympic Games held?
The government didn't want foreign engineers ( because they wanted a Chinese engineer for a Chinese railroad ).（对括号提问）
_____ didn't the government _____ foreign engineers?