问题
选择题
It was believed that things would get worse, but ____ it is they are getting better.
A．before
B．after
C．because
D．as
答案
答案：D
本题要求考生会分析语意。本题联系到省略：but as it is going now, they are getting better（这和前面提出的would get worse作意义比较）。