1. Rather than disposing of unused flu vaccine, researchers are studying how to make         use of it.

• (A) economical
  
• (B) economy
  
• (C) economist
  
• (D) economize
  

2. Carelessness resulted in 11 injuries among machinists last month, so the Smith Tire Factory will implement strict measures to enforce its         regulations.

• (A) safely
  
• (B) safe
  
• (C) safeties
  
• (D) safety
  

3.         the development of art in the region, the Ontario provincial government established the Ontario Regional Art Council.

• (A) For the promotion
  
• (B) To promote
  
• (C) After being promoted
  
• (D) Promotion
  

정답보기