Choose the best answer to complete the following question.
Most people can ______ clearly between a real and stimulated smile.
A.differ
B.different
C.differentiate
D.difference

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
There are lots of TV Christmas ________ for children this year.
A.specialized
B.specialities
C.specially
D.specials

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
The water is __________. You can’t drink it.
A.polluted
B.pollutant
C.polluting
D.pollution

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.
Pokémon Go is ______ this season’s hit game. But we’re just over a month out, so it’s too soon to know exactly how Pokémon Go is faring in the longer term.
A.unquestionable
B.questionably
C.questionable
D.unquestionably

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
Although David was _______ after a long day at his office, he tried to help his wife with household chores.
A.exhausting
B.exhaustive
C.Exhaustion
D.exhausted

Mark the letter A,B,C,or D on your answer sheet to indicate the correct answer to each of the following questions.
Internet _______ has helped bloggers share their experiences and opinions easily and quickly.
A.connectivity
B.connector
C.connecting
D.connection

Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions.
The growth of two-income families in the United States ______ of people moving to a new social class.
A.has resulted in millions
B.resulting in millions
C.results of millions
D.millions of results

Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions.
Most office furniture is bought more on the basis of _______ than comfort.
A.affordability
B.afforded
C.affording
D.afford

Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions.
Population explosion seems to surpass the ability of the earth to meet _____ food.
A.the demand for
B.the demand at
C.the demanding for
D.the demanding at

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
Those specialists are trying to find ways of making more _______ use of agricultural land.
A.production
B.productive
C.productivity
D.produce