The two teachers taught him 30 years ago, but（）of them can recognize him now.

• A、 either
  
  

• B、none
  
  

• C、each
  
  

• D、neither

3. Directions:In each of the following groups of words, there are four underlined letters or letter combinations marked A, B, C and D. Compare the underlined parts and identify the one that is different from the others in pronunciation. Mark your answer by blackening the corresponding letter on the Answer Sheet.（）

• A、P（o）st
  
  

• B、 c（o）st
  
  

• C、 m（o）st
  
  

• D、h（o）st
  
  

60.(  )