Theaddressbook________theemailaddressesofyourfriendsorgroupsofcolleagues.
A、makesiteasytorecallTheaddressbook________theemailaddressesofyourfriendsorgroupsofcolleagues.
I'm______tograduateinthenexthalfoftheyear.
It________asashocktorealizethatIwasnotaloneintheroom.
________withthesizeofthewholeearth,thehighestmountainsdonotseemhighatall.
Othersarguethatsincetheearthhasenduredalongstringoficeagesinthelasttwomilliontothreemillionyears,anywarmingis________tobetemporary.
