6.He worked through his college ,so he had _____ better understanding of _____ life.

A. a; the   B. the ;a 

C. x;the   D. a;x

7. I’d appreciate ______ if you would like to teach me how to use the computer .

A. that   B. this  C. it   D. you

8. His English is very good indeed, but of course not _____ a native speaker.

A. as fluently as B. as fluent as 

C. much fluent than D. more fluently than