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 of public-opinion research are interviewers, questionnaires, tabulating equipment, and to sample population.

When my father was young, he ______ get up early to do the gardening.

Mark the letter A, B, C, or D on your answer sheet to indicate the most suitable response to complete each of the following exchanges.

- Anne: “Make yourself at home”.

- John: “ _______”

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

"I'm sorry. I didn’t do the homework." said the boy.

Jack asked his sister ______.

Eugenie Clark has a wide _______ about cultures of many countries in the world

The number of unemployed people __________ recently.

I believe that he was concerned __________ all those matters which his wife mentioned.