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.
The oceans contain many forms of life that has not yet been discovered.

A. oceans

B. forms

C. Has

D. Yet

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.

Drying(A)food by means of(B) solar energy is an ancient process applying(C) wherever climatic conditions make it possible. (D)

A. Drying

B. means of 

C. applying

D. make it possible.

* 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.

The medical problems of parents and their children tend to be very similar to because of the hereditary nature of many diseases.

A. their

B. tend to

C. similar to

D. because

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

Many of the population in the rural areas is composed of manual labors.

A. Many 

B. rural areas 

C. composed of 

D. labors

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.
That these students have improved their grades because of their participation in the test review class.

A. That

B. have improved

C. because of

D. their participation in

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