21.---Would you mind if I turned on the TV and watched CCTV news?

    ---___________. As a matter of fact, I also like watching CCTV news.

A. No, you can’t    B. Yes, I do        C. No, go ahead      D. OK, no problem

22.She talked ______ she saw the accident. But in fact she only heard of it from others.

A. so that   B. as though   C. even though   D. once

23.The traffic in our county is very busy, for some main streets _______.

 A.have been rebuilt  B.rebuilt  C.are being rebuilt  D.are rebuilding