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.

If carefully doing, the experiment will be successful.

A.If 

B.doing

C.will

D.successful.

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.

If carefully doing, the experiment will be successful

A. If

B. doing

C. will

D. successful

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.

I (A) clearly (B) remember (C) to tell you (D) about this before.

A. clearly

B. remember

C. to tell

D. about

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.

Unless (A) you get your kids doing (B) the housework, you will have to (C) do it all (D) by yourself.

A. Unless 

B. doing 

C. have to

D. it all 

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.

To be successful in an interview, you should control the feeling of pressure and making a good impression on the interviewer.

A. successful

B. control

C. making

D. on

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

If carefully doing. the experiment will be successful.

A. If  

B. doing       

C. will         

D. successful