Thereistheappreciationofthesalienthistoricaltruth________theagingofadvancedsocietieshasbeenasuddenchange
A、Which
B、what
C、that
D、how
Duringthepasttwodecades,researchhas________ourknowledgeofdaydreaming.
A、expanded
B、emerged
C、descended
D、conquered
Lookatthisgroupofpeople______beachvolleyball.
A、played
B、isplayed
C、playing
D、isplaying
Iftheoperation________carefullyprepared,itwouldnothavebeensuccessful.
A、wasnot
B、hasnotbeen
C、hadnotbeen
D、werenot
Weareallconcerned_______hersafety.
A、about
B、in
C、of
D、with