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

Question 5: (A) When the chemicals (B) inside a cell (C) no longer produce ions, the cell stops (D) to function.

A. When 

B.Inside

C. No longer

D. To Function

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

Question 5 : Although not widely sold, that book is considered to be best book on the subject.

                          A                         B                                                 C           D

A. Although

B. Sold

C. Best

D. On

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

We need to consider if or not the disadvantages of the plan outweigh the advantages.

A. to consider

B. if or not   

C. of    

D. outweigh

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

Question 5: What I told her a few days ago were not the solution to most of her problems.

A. What I told her

B. were

C. to

D. most 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

Foreign students who (A) are doing a decision (B) about which school (C) to attend may not know exactly where (D) the choices are located

A. are doing

B. about which

C. to attend

D. the choices

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

Today's students also appear more formerly dressed and conservative- looking these days.

A. Today's

B. also         

C. more formerly dressed         

D. these days

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

The teacher doesn't let her students not use their mobile phones in class.

A. The

B. doesn't let

C. not use

D. in