Direction: In the following passage some of the words have been left out. First, read the passage over and try to understand what is about. Then fill in the blanks in the blanks with the help of the alternatives given.
One of the major causes of the failure of _____(A) _____countries on the economic front is their _____(B)____ to evolve a judicious mixture of _____(C) ____substitution and export promotion. Today, Zambia, which____ (D)___ on imports after its independence ____(E) ____years. 

Q:

(C).

• 1
  Scientific
• 2
  invention
• 3
  import
• 4
  export