All her hard work __________in the end ，and she finally passed the exam ．
A、showedoffB
暂无解析
Itisestimatedthat，currently,about50，000speciesbecome_____everyyear．
Hiswifehasbeen_______alotofpressureonhimtochangehisjob.
TheopportunitytoexploreandplayandtheencouragementtodosoCan________theperformanceofmanychildren．
Successfullearningisnota(n)________activitybutconsistsoffourdistinctstagesinaspecificorder
About20ofthepassengerswhowereinjuredinaplanecrasharesaidtobein_____condition．
