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

解析试题分析：句意：花费了我三个半小时的时间完成这项新的工作。三个半小时，three hours and a half="three" and a half hours.根据句意及结构，故选C。
考点：考查固定短语的用法。