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.

One necessary (A) preventive measure (B) to be taken (C) is that the public should be on the outlook (D) for symptoms of the disease.

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.

Protective gear (A) for firefighters is supposed (B) to be made of inflammable (C) materials so as to eliminate (D) the risk of fire.

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 boy has (A) a lot of toy cars (B), but he never (C) plays with it (D).

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 spokesman (A) had an uphill (B) struggle to find an explanation that was readily intelligent (C) to the layman (D).

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.

Mrs. Lan and the boys want to spend the rest of his life living in the suburb.

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 principle of comprehensive (A) inputs states (B) that the language provided (C) for students should go only a little beyond their current (D) experience and understanding.

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.

They give (A) a good presentation on (B) how to adopt (C) a green (D) lifestyle last week.