Some of the exercises appear to be ones that you have done, but after taking sec

Some of the exercises appear to be ________ ones that you have done, but after taking ________ second look, you will find that they are different.

A．/; the B．the; the

C．the; a D．the; /

试题答案

C　

第一个空格后有定语从句that you have done修饰，因而是特指；第二个空格为不定冠词与序数词连用，表示“再一”。