A.improved B.should improve C.should be improved D.were improved
A.which B.of which C.where D.at where
A.consent B.confirm C.contend D.conceive
A.giving up B.to give up C.given up D.give up
A.processes B.precedes C.proceeds D.exceeds
A.lack B.are lacking of C.lack of D.are in lack
A.irregular B.diverse C.relative D.resistant
A.resulted from B.comes to C.resulted in D.aims at
A.gloomy B.dull C.awkward D.tedious
A.taken away B.taken down C.taken to D.taken in