1.They will wonder whether their life ___ considerably by 2010.
A.will have changedB.will be changing
C.will have to change
D.is going to change
2.___ three girls, I have always believed that Mary is the ___ beautiful.
A.Of...moreB.Among...much
C.Of...most
D.Among...most
3.This picture is believed ___ painted by Tom.
A.it wasB.to be
C.to being
D.to have been
4.The statesman and writer you talked with last month ___ at today's conference.
A.was presentB.was presenting
C.were present
D.were presenting
5.I ____ provoded you with the money. Why didn't you ask me ?
A.could haveB.had
C.must have
D.ought to have