21. Liang Bo, who came out ________ first in the TV show of the Voice of China in July 2012 , will become ________ super star.
 A. /, a                  B. the, a              C. the, the            D. /, the 
22. Personally, I think modern education is ________ sitting at a desk and looking at the       blackboard.
       A. more than         B. no more than            C. less than                 D. no less than
23. Subway Line 1 in Ningbo, ________ in 2008 and ________ in 2014, will help solve the traffic problem in Ningbo.
    A. starting, completing                            B. started, to be completed 
       C. to start, completed                              D. starting, completed