C Flags have existed for over 3000 years

题目：

C

Flags have existed for over 3000 years.The earliest flags were wooden or metal poles topped with a carving.About 2000 years ago pies of fabric were added to some poles for decoration.Over the next 500 years the free-flying part of the flag became more important.

Every country today has its own flag.Many groups and organizations also have a flag which stands for,or symbolizes,the aims of the group.

The flag depicts (描绘)a world map,centered on the north pole.The map is surrounded by an olive(橄榄)wreath(花环)symbolizing peace and co-operation.The flag is blue and white.

8.Flags have been in existence for _________.

A.500 years                     B.over 3000 years

C.about 2000 years              D.between 500 and 2000 years

9.A very old flag is likely to _________.

A.be made of fabric             B.have a map on it

C.have white shapes on it       D.be made of carved wood

10.An olive wreath is used to represent _________.

A.peace         B.purity        C.justice       D.equality