During the day, we’ll walk across the land following the footprints of big animals such as elephants, lions and giraffes．

1. A.
   定语
2. B.
   状语
3. C.
   补语
4. D.
   宾语

During the day, we’ll walk across the land, ____ the footprints of big animals.

 During the day, we’ll walk across the land, ____ the footprints of big animals.

   A. will follow            B. follow              C. following            D. to follow