28．A．As                 B．Since             C．Why              D．So

5'7．A．tell                B．speak            C．talk             D．say

26．A．difficult            B．difficultly        C．differently         D．different

25．A．what you saw         B．what you hear       C．What you look      D．what you see

24．A．brave               B．confident           C．courage            D．pleasure

23．A．young              B．youngest            C．old                D．oldest

22．A．none of us                  B．all of us            C．one of us          D．three of us

21．A．lied                B．lay               C．laid             D．lain

20．A．I                 B．me              C．my               D．mine

19．A．someone            B．anyone            C．no one           D．everyone