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.

According to statistics, the number of young people who actively uses Instagram and Snapchat has increased sharply in recent years

A. the number

B. who actively uses

C. has increased

D. in recent years

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.

According to statistics, the number of young people who actively uses Instagram and Snapchat has increased sharply in recent years.

A. the number 

B. who actively uses 

C. has increased 

D. in recent years. 

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.

According to statistics, the number of young people who actively uses  Instagram and and Snapchat has increased sharply in recent years.

A. the number

B. who actively uses

C. has increased

D. in recent years

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 bones of the elderly are more prone to fractures than of young people.

A. the elderly 

B. more 

C. to 

D. of

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.

(A)The number of people (B)killed in last week's attacks in Paris(C)have risen(D) to 130

A. The number

B. killed

C. have risen

D. to 

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 (A) the homeless people in Nepal have (B) increased sharply due to (C) the recent severe earthquake.(D) 

A. of

B. have

C. due to

D. severe earthquake