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. 

Genes have several alternative form, or alleles, which are produced by mutations.

A. several alternative

B. form

C. which

D. produced by

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.

George dislikes politics because he believes that they are corrupted.

A. dislikes

B. because

C. believes

D. they are

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.

Because (A) the expense of traditional fuels (B) and the concern (C) that they may mn out, many countries have been investigating (D) alternative sources of power.

A. because

B. traditional fuels

C. concern

D. been investigating

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.

They are having their house being painted by a construction company.

A. having

B. their

C. being painted

D. construction

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.

They are having their house being painted by a construction company.

A. having

B. their

C. being painted

D. construction

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

Annoying by the receptionist's behaviour, they decided not to stay in that hotel.

A. Annoying

B. behaviour

C. not to stay

D. in

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

Annoying by the receptionist's behaviour, they decided not to stay in that hotel.

A. Annoying        

B. behaviour         

C. not to stay        

D. 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.

Buying clothes are often a very time-consuming practice because those clothes that a person likes are rarely the ones that fit him or her.

A. are

B. a very time-consuming

C. because those

D. are rarely the ones

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.

Buying clothes are often a very time-consuming practice because those clothes that a person likes are rarely the one that fit him or her.

A. are

B. a very time-consuming

C. because

D. are rarely the one