(   )6.A.The woman.      B.The man.          C.The woman and the man.

(   )7.A.Russia.             B.China.              C.India.

(   )8.A.20%                                      B.25%                         C.30%

(   )9.A.The population of some developed countries.

B.The world’s population.

C.Life in some developed countries.