Becareful,_______you'llfalldown.
A、onthecontrary________withthesizeofthewholeearth,thehighestmountainsdonotseemhighatall.
GeneralMotors,oneoftheworld'slargestautomanufacturers,isexpandingits________inthiscountry.
Thefarmerhadtowearheavybootsinthewinterbecausethefieldsweretoowetand________.
It________asashocktorealizethatIwasnotaloneintheroom.
________they'vegottoknoweachotheralittlebetter,theygetalongjustfine.
