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

Those who had already purchased tickets were instructed to go to gate first immediately.

A. Those 

B. had already purchased

C. gate first

D. immediately

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.

Those who had already purchased tickets were instructed to go to gate first immediately.

A. Those

B. had already purchased

C. first

D. immediately.

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

Those who had already purchased tickets were instructed to go to gate first immediately

A. Those

B.had already purchased

C. first

D. immediately

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

People who had already bought tickets were instructed to go to gate first straightaway

A. People

B. had already bought

C. first

D. straightaway

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 to indicate the underlined part that needs correction in each of the following questions.

After the police had tried unsuccessfully to determine to who the car belonged, they towed it to the station

A. the police

B. unsuccessfully

C. who

D. it to

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

After the police had tried unsuccessfully to determine to who the car belonged, they towed it to the station.

A. the police 

B. unsuccessfully 

C. who 

D. it 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

According to scientists (A) who study birds,(B) upon hatching,(C) ducklings have already known to swim.(D)

A. scientists

B. birds

C. upon hatching

D. to swim