Sentence Correction:

1. Amazed
2. Memories
3. Grilled
4. Embarrassment
5. Revise

​D: I had a pleasant time at secondary school because I had to deal with many bullies.
Correction: "had to" should be replaced with "did not have to" for clarity.
Corrected: I had a pleasant time at secondary school because I did not have to deal with many bullies.

1. B: The student learned everything with heart, so he couldn't answer a different question.
   Correction: "with heart" should be "wholeheartedly" or "with passion".
   Corrected: The student learned everything wholeheartedly, so he couldn't answer a different question.

2. A: Do you ever participated in a photography club before? It's interesting and helpful.
   Correction: "Do you ever participated" should be "Have you ever participated".
   Corrected: Have you ever participated in a photography club before? It's interesting and helpful.

3. B: The tourists enjoyed some local specialities, then saw a tribe dance show in front of the communal house.
   Correction: "saw a tribe dance" should be "saw a tribal dance".
   Corrected: The tourists enjoyed some local specialities, then saw a tribal dance show in front of the communal house.

4. D: Nam has provided eco-tours for many foreign visitors to Viet Nam since several years.
   Correction: "since several years" should be "for several years".
   Corrected: Nam has provided eco-tours for many foreign visitors to Viet Nam for several years.

5. B: During my first presentation, my mind turned completely blank due to nervousness.
   Correction: "turned blank" should be "went blank".
   Corrected: During my first presentation, my mind went completely blank due to nervousness.

6. D: Although that singer has held many concerts, she still finds giving a performance exhilarated.
   Correction: "exhilarated" should be "exhilarating".
   Corrected: Although that singer has held many concerts, she still finds giving a performance exhilarating.

7. D: Seeing a gong show is one of the most interesting experiences I had in my entire life.
   Correction: "I had" should be "I have had".
   Corrected: Seeing a gong show is one of the most interesting experiences I have had in my entire life.

8. B: After putting out the tents together, the children will learn how to build a campfire.
   Correction: "putting out the tents together" should be "putting up the tents together".
   Corrected: After putting up the tents together, the children will learn how to build a campfire.

9. B: Before her son attended a 10-days course in an army camp, he was a very shy boy.
   Correction: "10-days" should be "10-day".
   Corrected: Before her son attended a 10-day course in an army camp, he was a very shy boy.

10. 
    VII. Complete the Conversation:

11. "Have you ever visited Niagara Falls?"
    Answer: "Yes, twice."

12. "How's your holiday going?"
    Answer: "It's amazing!"