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.

We have conducted (A) exhausting research (B)into the effects of smartphones on students’ (C) behaviour and their (D) academic performance.

A. exhausting  

B. into  

C. behaviour  

D. academic performance

Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions.

Jane got married_______ Peter two years ago, but now they have split

A. As

B. with 

C. for 

D. to