A.if
B.therefore
C.so
D.as though

A.would have done
B.would do
C.had done
D.wouldn’t have done

A.discarded
B.accompanied
C.played
D.performed

A.keep
B.take
C.put
D.set

A.long-term growth and prosperity
B.ability to protect its citizenry
C.possession of favorable weather conditions
D.need to import food supplies

A.size of population    
B.age
C.availability of rail transportation     
D.site

A.traditions
B.resourcefulness
C.wealth
D.organization

A.sacrifice
B.understand
C.integrate
D.recognize

A.sacrifice
B.understand
C.integrate
D.recognize

A.social
B.mature
C.secure
D.polite