问题补充:
—How long will you graduate from senior middle school?
—It will be less than one yearI graduate.
A. when
B. that
C. before
D. since
答案:
A. when
B. that
(答案→)C. before
D. since
解析: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。