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

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.
Question 5: My mobile phone can be(A) used(B) for check(C) emails because it’s connected to(D) the Internet. Question 6: The(A) internet has changed(B) the way we shop(C), communicating(D) and learn.
Question 7: People have use (A) scotch tape since it was(B) invented(C) in 1930 by (D)engineer Richard Drew.