It is estimated that ，currently, about 50，000 species become _____every year ．
A、extinctA
暂无解析
Itisestimatedthat，currently,about50，000speciesbecome_____everyyear．
Theteamplayedhardbecausethechampionshipofthestatewas______.
Themanageriscallingona______customertryingtotalkhimintosigningthecontract．
In1991，whilet11eeconomiesofindustrializedcountriesmetaneconomic_____，theeconomiesofdevelopingcountriesweregrowingveryfast．
Johnsaysthathispresentjobdoesnotprovidehimwithenough______forhisorganizingability.
