Mark the letter A, B, C, or D on your answer sheet to indicate the underlined part that needs correction in each of the following questions.

The basic elements(A) of public-opinion research are(B) interviewers, questionnaires, tabulating (C)equipment, and to sample (D) population.

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.

Although the new library service has been very successful, its future is ________ certain.

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.

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.

Van Gogh suffered from depression ____________ by overwork and ill-health.

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.

My mother _________ me against staying late night after night to prepare for exams.

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

Cynthia was on edge all day about the important presentation she had to give to the local citizens groups.

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.

That's a nice coat, and the colour ___________ you well.