In order to live the kind of life we want and to be the person we want to be ，we have to do more than just ________with events ．

It is estimated that ，currently, about 50，000 species become _____every year ．

Successful learning is not a(n)________activity but consists of four distinct stages in a specific order

Theteamplayedhardbecausethechampionshipofthestatewas______.

In1991，whilet11eeconomiesofindustrializedcountriesmetaneconomic_____，theeconomiesofdevelopingcountriesweregrowingveryfast．