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.

Humans (A) have done (B) great advances (C) in technology at the expense (D) of the environment.

A. Humans

B. have done

C. great advances

D. at the expense

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

Education (A) and training are an (B) important steps in getting (C) the kind of job that you would like to have (D).

A. Education

B. an

C. in getting

D. to have

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.

Hardly did he enter (A) the room when (B) all the lights (C) went (D) out.

A. did he enter

B. when

C. the lights

D. went

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.

English (A) is speaking (B) in many countries (C) in the world (D).

A. English

B. speaking

C. many countries

D. the world

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 number of wildlife habitat reserves have been established in order to save endangered species from extinction.

A. save

B. established

C. have

D. species

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.

Since vitamins are contained in a wide variety of foods, people seldom lack of most of them.

A. are

B. in a

C. variety of

D. lack of