When a giraffe(长颈鹿)has ________ drink, it has to stand with its front legs wide apart in order to reach ________ water．

1. A.
   /; /
2. B.
   a; the
3. C.
   the; /
4. D.
   /; the

 When a giraffe(长颈鹿) has ______ drink, it has to stand with its front legs wide apart in order to reach ______ water.  
A. /; /             B. a; the          C. the; /          D. /; the

When a giraffe(长颈鹿) has ______ drink, it has to stand with its front legs wide apart in order to reach ______ water.
A. /; /             B. a; the          C. the; /          D. /; the

When a giraffe(长颈鹿) has _____ drink, it has to stand with its front legs wide apart in order to reach _____ water.

A．／; ／　　　　B．a; the

C．the; ／　　　 D．/; the