Let’s make contributions to_________world of the 21st century, _________world of success and understanding each other.

Let’s make contributions to_________world of the 21st century, _________world of success and understanding each other.

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

Let’s make contributions to_________world of the 21st century, _________world of success and understanding each other.

A. the;/         B./;a       C. a; the      D. the; a

Let’s make contributions to    world of the 21st century,    world of success and understanding each other．

A．the;/           B．/;a           C．a; the             D．the; a

Let’s make contributions to_________world of the 21st century, _________world of success and understanding each other.