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.

Although some societies are ____ undeveloped, their languages from linguist's point of view are very complex.

It is imperative ____ what to do when there is a fire.

The plane ____ down 20 minutes later than scheduled because of the bad weather.

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

Around 150 B.C. the Greek astronomer Hipparchus developed a system to classify stars according to brightness

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.