1 . Do you know _________ Amazon River in South America is _________ second longest river in the world?

A．the; the

B．the; a

C．/; a

D．/; the

2 . ---Annette has been complaining about_____ traffic keeping her awake at night.
---Yes, there is ________ heavy traffic on the road near the residential community.

A．/; /

B．/; the

C．a; the

D．the; /