15.I need to revise for my exam. In addition that, I'm working on my social awareness campaign.
B. that→ to that / Ø (in addition + (to sth): ngoài (cái gì) ra)

I need to revise for my English exam. In addition (to that), I’m working on my social awareness campaign.

(Tôi cần phải ôn tập cho kỳ thi tiếng Anh của tôi. Ngoài (điều đó) ra, tôi đang thực hiện chiến dịch nâng cao nhận thức xã hội của mình.)

17.I remember having visit this historic site but not exactly the time
A. having visit => having visited
COMMUNICATION PATTERNS
1. David and his mom are talking to each other.
  David: "Mom, I've received an offer for a summer internship in Australia!"
  David's mom: "B. Oh, that's great! Congratulations!"

  Explanation: Option B expresses excitement and congratulates David on his achievement, which is appropriate given the positive news he shared.

2. John and Mary are talking to each other.
  John: "If I were you, I'd apply for the University of Melbourne scholarship."
  Mary: "C. I suppose I ought to."

  Explanation: Mary's response acknowledges John's suggestion and implies that she is considering it seriously.

3. John and Mary are talking to each other.
  John: "I heard you passed the examination. Congratulations!"
  Mary: "D. Many thanks."

  Explanation: Mary's response expresses gratitude for John's congratulations.

4. John and Mary are talking to each other.
  John: "Why did you decide to major in French, Mary?"
  Mary: "A. Because it is very similar to English."

  Explanation: Mary provides a reason for her decision to major in French, stating that it is similar to English.

5. Tom and John are talking together.
  Tom: "How did you get to Hoi An Ancient Town in Quang Nam?"
  John: "B. I came here by train."

  Explanation: John directly answers Tom's question by stating that he traveled to Hoi An Ancient Town by train.