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.

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 he had graduated from Vietnam Naval Academy when he joined Vietnam Coast Guard.

A. he had    

B. graduated from  

C. when       

D. joined

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.

Some bacteria(A)are extremely harmful(B), but others are regular used(C) in producing foods. (D)

A. Some bacteria

B. extremely harmful

C. regular use

D.  producing foods

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.

(A) The girl (B) that you (C) are looking for (D) living in this area.

A. The 

B. that 

C. are 

D. living 

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.

Some bacteria are extrern_ely harmful, but others are regular used in producing  foods.

A. extremely harmful

B. producing foods

C. Some bacteria

D. regular used

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 man that you are looking for living next door.

A. The

B. that

C. are

D. living

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.

Each of the chemical elements have its own standard symbol.

A. of the

B. chemical

C. have

D. its own

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

You (A) should stop  (B) to smoke because it is very harmful (C) to  (D) your health

A. should

B. to smoke

C. to

D. your health

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.

Chemical engineering is based on the principles of physics, chemists, and mathematics.

A. on

B. principles

C. chemists

D. mathematics