Mark the letter A, B, C, or D on your answer sheet to indicate the word that differs from the other three in the position of primary stress in each of the following questions.

Switching to            eco light bulb is one way to protect the environment.

Mark the letter A, B, C, or D on your answer sheet to indicate the word whose underlined part differs from the other three in pronunciation in each of the following questions.

I am so tired that I can’t            what you are saying. 

Mr. Baker is very interested in our plan. I spoke to him on the phone last night.

Was it really necessary that I            there watching you the entire time you were rehearsing for the play? It was really boring watching you repeat the scenes over and over again.

Mark the letter A, B, C, or D on your answer sheet to indicate the word(s) OPPOSITE in meaning to the underlined word(s) in each of the following questions.

Pure water of often a fairly rare commodity that requires significant energy to produce.