问题
选择题
—The current European debt crisis is affecting many countries in the world.
—Will it be at least several years __________ everything returns to normal?
A．when
B．before
C．that
D．since
答案
答案：B
考察固定句型。It be 一段时间before…一段时间以后才做某事；结合句意可知B正确。句意：至少几年以后一切都恢复正常。