问题
选择题
3. It is exactly its great success in rural reforms _____ prompted the country to make a bigger leap forward in the reform and opening-up drive.
A．where
B．what
C．that
D．when
答案
C
It is …that…构成强调句，对主语部分exactly its great success in rural reforms进行强调。句意为：确切地说，是农村改革的伟大成功使国家的改革开放向前迈了更大的一步。