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

试题分析：It takes sb. sometime to do sth.做某事花费某人多长时间。three and a half hours三个半小时，故hour要加s，句意：完成这项新工作要花费我们三个半小时。故选C。