In1900,theUnitedStatesrankedfirstintheworldintheproductionof________.
Weareinterestedintheweatherbecauseit_______ussodirectly—whatwewear,whatwedoandevenhowwefeel.
TheeffectofDarwinistideaof“survivalofthefittest”wasshatteringin()’sfictionalworldofjungle,where“killortobekilled”wasthelaw.