8.The best title of this passage is _________.

8.The best title of this passage is _________.
A.Great engineer in ancient China
B.Zhaozhou stone bridge
C.Four great inventions
D.How to build a bridge
9.The third paragraph mainly tells us _________.
A.the materials of Zhaozhou bridge
B.the structure of Zhaozhou bridge
C.the arches of Zhaozhou bridge
D.the importance of Zhaozhou bridge
10.The underlined word “carriage” probably refers to _________.
A.cart B.transport C.channel D.resourse