问题
选择题
. ----______are they staying in Beijing?
----For three days.
A．How often
B．How long
C．How old
D．How soon
答案
答案：B
for three days表示的是时间段，故用how long 来提问。
搜题请搜索小程序“爱下问搜题”
. ----______are they staying in Beijing?
----For three days.
A．How often
B．How long
C．How old
D．How soon
答案：B
for three days表示的是时间段，故用how long 来提问。