Tiêu đề UNIT 2 - EXERCISES - HS.docx ✅

________________________________________________________________________________________________ I learn smart world 12 - Exercises 2. When/Since playing board games, my family always gets very competitive. 3. The old castle has been a popular tourist attraction since/when it was built in the 15th century. 4. While/Before I was shopping for groceries, I ran into my old high school teacher. 5. It's a good idea to read reviews before/while booking a hotel room online. 6. After/Since/Until/Once arriving at the airport, we discovered our flight had been delayed by two hours. 7. Before/After/Since/Until going sightseeing, we always make sure to grab a map of the city. 8. Since/When/While/After/Before I left my hometown, I have lived in three different countries. 9. While/When/Since/Once the teacher was explaining the math problem, his students were taking detailed notes. 10. We continued hiking until/since/before/while we reached the beautiful waterfall at the top of the mountain. II. Supply the correct forms of the verbs in brackets. 1. Before (arrive) _______________ at the airport, I checked in online to avoid long lines. 2. After I did my homework, I (go) _______________ out to play with my friends. 3. We will wait until Baren (return) _______________ before starting the meeting. 4. Since I (leave) _______________ my old job, I have found a new career that I enjoy much more. 5. Since (move) _______________ to the new city, I have made many new friends and discovered great places to visit. 6. After Bill (finish) _______________ his presentation, he will answer any questions from the audience. 7. When (use) _______________ correctly, this new software can greatly improve productivity in the office. 8. When I (visit) _______________ Paris, I (meet) _______________ many friendly locals who showed me around the city. 9. While the scientist (do) _______________ his experiments, he (discover) _______________ a new element. 10. Before (go) _______________ to bed, they always read a book to relax and unwind. 11. Before I (say) _______________ anything about the surprise party, I made sure everyone knew it was a secret. 12. After (finish) _______________ my meal, I felt much more energized and ready to continue with my day. 13. The car wouldn't start until (help) _______________ by a mechanic who fixed the engine. 14. Since I met my mentor, I (gain) _______________ a lot of valuable insights into my career. 15. They (be) _______________ relieved after they had completed the difficult project on time. 16. We need to finish the presentation before Mary (come) _______________ to the meeting room. 17. When (arrive) _______________ at the concert, we were amazed by the colorful lights and enthusiastic crowd. 18. When John (go) _______________ for a walk, he (run) _______________ into several old friends he hadn’t seen in years. 19. While we (explore) _______________ the museum, they (attend) _______________ a lecture on art history. 20. After (take) _______________ our seat, we enjoyed the view of the sunset from the restaurant window. III. Circle the correct words. 1. Could you tell me/Do you know if you have any dietary restrictions for the upcoming event? 2. Do you know/Could you tell me when the meeting is scheduled to start? 3. Could you tell me where/Do you know if there’s a nearby pharmacy that is open late? 4. Would you mind telling me if/Could you tell me the report has been finalized yet? 5. I was wondering whether/ Do you know if we could reschedule our appointment for a later date. 6. Would you mind telling me/I was wondering why the project deadline was moved up? 7. Could you tell me/Do you know whether you will be attending the conference next month?