TheinteractionsbetweenChinaandtheUSwillsurelyhaveasignificant_______on.peaceandstabilityintheAsia.—Pacificregionandtheworldasawhole.
Hiswifehasbeen_______alotofpressureonhimtochangehisjob.
Thepoorcountriesareextremely_______tointernationaleconomicfluctuations
Allherhardwork__________intheend，andshefinallypassedtheexam．
Johnsaysthathispresentjobdoesnotprovidehimwithenough______forhisorganizingability.
Itisestimatedthat，currently,about50，000speciesbecome_____everyyear．