mark the letter aA,B,C or D to indicate the underlined part that needs correction in each of the follewing questions

1,Unless she doesn't know who it is , she won't open the door

A doesn't know B who C it is D won't open

2, the firet had spread to the next building before the firemen had arrived

A had spread B to the next C before D had arrived

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

She is among the few who wants to quit smoking instead of cutting down

A. among

B. wants

C. smoking

D. cutting down

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

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.

It is a good idea to be careful in buying or purchasing magazines from salespersons who may come to your door

A. It is

B. to be careful

C. buying or purchasing

D. who

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

It is a good idea to be careful in buying or purchasing magazines from salespersons who may come to your door.

A. It is

B. to be

C. or purchasing

D. from salespersons

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

It is a good idea to be careful in buying or purchasing magazines from salespersons who may come to your door

A. It is 

B. to be 

C. or purchasing 

D. from salespersons

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.

It is vitally important that she takes this medication night and morning.

A. vitally   

B. that        

C. takes      

D. medication