Directions： Choose the suitable words from the word bank to fill in the blank with the letter before each word. You may not use any of the words in the bank more than once. 
A: fluent                  
B: acquisition        
C: diverse            
D: reverse             
E: competent    
F: competitive         G. skim                   H. beneficial          I. enhance            J.  engage   K. comprehension   L. confusion          M. proficiency       N. exposure         O. efficiency        Testing has replaced teaching in most public schools. Instead of teaching reading or writing skills which are      1      to students, now teachers are somehow encouraged to       2       the learning process. For instance, they ask students to read the questions at the end of a reading text first, and then teach them to         3      he text for the answers with various test-taking skills. We wonder whether the test-taking skills really help improve their language       4      .   The ability to read or write should        5      the ability to do reasonably well on comprehension of reading texts or   6   writing. However, neither reading nor writing develops simply through learning test-taking skills. Teachers must be careful when they teach students how to read and write to avoid any false language      7     . Too many discussions on test-taking skills will only end up with more     8     in learning because students have become more interested in test-taking skills rather than concentrating on the nature and quality of what should be taught.   As a result, students may be      9      in taking tests while they have little or no      10      to serious reading or thinking. They are unable to understand or talk about what they read, which is definitely disastrous to their academic preparation.