问题
In the past few years, so many areas throughout the world have been hit by such destructive earthquakes, snowstorms and tsunamis ________ we have never experienced before, ________ makes us worried a lot about nature disasters.
A:that; that
B:as; which
C:which; it
D:when; as
B:as; which
C:which; it
D:when; as
正确答案是：
同类题型
I am crazy about chocolate.—_____. That’s probably why I am becoming fatter and fatter.
Now, everybody, please turn to page _________and look at the ___picture.
What were you doing when the earth quake happened in Jilin?—I________TV when I heard the news.
What ______ the forest of Yangzhou in the last 30 years?—Yangzhou has become much greener.