问题
选择题
—How long will you graduate from senior middle school?
—It will be less than one year________I graduate.
A．when
B．that
C．before
D．since
答案
答案：C
考查状语从句。这里before引导时间状语从句，此处“It will be＋一段时间＋before...”，表示“还有多久就”，还有不到一年时间我就要高中毕业了。