问题
选择题
--___do you clean the reading room?
---Every two or three days.
A．How long
B．How far
C．How soon
D．How often
答案
答案：D
从答句中得知，问句应为“多少时候一次”。
搜题请搜索小程序“爱下问搜题”
--___do you clean the reading room?
---Every two or three days.
A．How long
B．How far
C．How soon
D．How often
答案：D
从答句中得知，问句应为“多少时候一次”。