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.

Although pure diamond is colourless and transparent, but when contaminated with other 

material it may appear in various colours, ranging from pastels to opaque.

A. colourless 

B. but 

C. contaminated 

D. ranging 

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 air that surrounds our planet is both odourless, colourless, and invisible.

A. The air

B. our planet

C. both odourless

D. invisible

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.

The world is becoming more (A) industrialized and the number of animal (B) species that have becoming (C) extinct (D) have increased. Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions

A.  industrialized

B. species

C. extinct

D. 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

Body language is quiet and secret, but most powerful language of all.

A. Body language 

B. and secret 

C. most 

D. of all 

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.

Body language is quiet and secret, but most powerful language of all.

A. Body language

B. secret

C. most

D. of all

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.

Body language (A) is quiet and secret (B), but most (C) powerful language

(D) of all.

A. Body language 

B. secret

C. most 

D. of all

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) Body language is quiet and (B) secret, but (C) most powerful language (D) of all

A. Body language

B. secret

C. most

D. of all

Mark the letter A, B, C or D on your answer sheet to show the underlined part that needs correction in each of the following questions.
Pure sodium immediately combines with oxygen when is exposed to air.

A. immediately

B. combines

C. is exposed

D. to air