You should sleep_______nine hours every nighta.in b.with c.at d.for
问题描述:
You should sleep_______nine hours every night
a.in b.with c.at d.for
答
d for后面加时间
答
d
答
d.for
答
睡九个小时 D
答
D是表示一段时间
in nine hours 是九个小时内所以A不对
答
D