What conclusion can we make from the passageA．Buil

单项选择题

Questions 11 to 13 are based on the following passage.

What conclusion can we make from the passage

A．Building roads without machinery was almost impossible 2,000 years ago.
B．It took a long time for the Romans to build roads by hand.
C．People still use the old Roman way of building roads.
D．Stones were used only in roads in Asia.