It was believed that things would get worse but it is they are getting better.A. beforeB

问题补充：

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：

A. before

B. after

C. because

(答案→)D. as

解析：考查固定的短语：句意：人们认为事情会变得更糟，但是实际上事情正变得更好。as it is 意思是 按现状；实际上。选D