This is book I told you about last week. I ’ve never read better one beforeA. a; aB. the

问题补充：

This is book I told you about last week. I ’ve never read better one before

A. a; a

B. the; a

C. a ； the

D. the ; the

答案：

A. a; a

(答案→)B. the; a

C. a ； the

D. the ; the

解析：句意：这是上周我告诉你的那本书。以前我从来没有读过比它更好的。Book被I told you about last week限定，故为特指，该用定冠词。Better one表示类别，该用不定冠词，所以选B。