It will take them___to finish the course.A.one and a half year's time

问题描述:

It will take them___to finish the course.A.one and a half year's time
B.a year and a half
C.a year and a half of time
D.a year and a half time原因.

选项D 应该是 a year and a half's time名词所有格作定语
选项A 应该是 one and a half years’ time
明白了 答案只能是B a year and a half