问题
选择题
-- Did you go to bed early last night?
--- No. I watched a movie, so I didn’t go to bed until 11 o’clock.
A.3-hours
B.3-hours’
C.3-hour’s
D.3-hour
答案
答案:D
修饰名词是一个时间长度,通常用“数词-名词”的结构,名词不可使用复数,此
结构相当于一个形容词,故选D。