—Good news! We will have a holiday.—I’ve heard of it. But it’s coming in .A. three days;

问题补充：

—Good news! We will have a holiday.

—I’ve heard of it. But it’s coming in .

A. three days; three days’ time

B. three days’; three days’

C. three-day; three days

D. three days; three-day time

答案：

A. three days; three days’ time

B. three days’; three days’

(答案→)C. three-day; three days

D. three days; three-day time

解析：时间表示量修饰名词，通常用连字符，用连字符的单词不使用复数，三天的假期可写成three-day holiday，表示具体的时间可以直接写数词加时间单位，有复数形式，三天可写成three days，故选C。