Mark the letter A, B, C, or D to indicate the sentence that is closest in meaning to each of the following questions. 

There are possibly a hundred people at the meeting. 

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. 

Some of the passengers looked green around the gills after the trip! Their faces turned pale.

We have decided to _____________ our research into environmental waste to ensure high health standards in this city. 

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

Ray Kurzweil suggests that exponential technological development will lead to the inevitable rise of artificial intelligence. 

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

A current survey indicates that lower income tax on overtime earnings might act as a stimulant to industry. 

No one is quite sure why Walt Disney dressed the mouse in the shorts with two buttons and gave him the yellow shoes. 

What does the passage mainly discuss?