I have read the material several times but it doesn't make any ________ to me.    

A meaning         B. importance        C. sense        D. significance

I have read the material several times but it doesn't make any ________ to me.      

A meaning         B. importance        C. sense        D. significance

I have read the material several times but it doesn’t make any _______to me.

A.meaning                           B.importance

C.sense                                D.significance

I have read the passage several times but it doesn’t make any     to me.

  A. meaning    B. importance    C. sense    D. significance

I have read a large part of the book, the rest ______ more difficult.

A. had been 　 B. have been　 C. are 　 D. is