1 . Every morning he spends________ hour doing exercise, then he goes to________ work.

A．a ;a

B．an; /

C．a; /

D．an; 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; /