Question

It took us ____ to finish the new work.
A. three hour and a half     B. three and a half hour    C. three and a half hours

Answer 1

C

試題分析：It takes sb. sometime to do sth.做某事花費某人多長時間。three and a half hours三個半小時，故hour要加s，句意：完成這項新工作要花費我們三個半小時。故選C。