chia động từ trong ngoặc ở thì quá khứ tiếp diễn để diễn tả hành động xảy ra song song trong quá khứ

Đây là các câu trả lời cho các câu hỏi về thì quá khứ tiếp diễn: 1. were, was 2. was, were 3. was, was 4. were, was 5. were, were 6. were, were 7. was, was 8. were, were 9. were, were 10. was, were 11. was, was 12. was, was 13. were, were 14. were, were 15. was, were 16. were, were Cụ thể như sau: 1. While we were waltzing at the checkout, my dad was looking for a new watch. 2. The store was offering a huge discount while people were rushing to buy things. 3. While the sales assistant was helping an elderly woman, a long queue was forming behind her. 4. I was choosing a new phone case while my sister was testing some headphones. 5. The employees were decorating the store while customers were entering to check out the new collection. 6. While we were checking out the clothing section, our parents were buying some groceries. 7. My mom was choosing vegetables while my dad was looking at the frozen food section. 8. The children were running around the toy store while their parents were discussing which gifts to buy. 9. While the shop was advertising the new sale, customers were gathering round. 10. The discount shop was selling products at half price while people were lining up outside. 11. While the sales assistant was helping an elderly woman, a long queue was forming behind her. 12. I was choosing a new phone case while my sister was testing some headphones. 13. The employees were decorating the store while customers were entering to check out the new collection. 14. While we were checking out the clothing section, our parents were buying some groceries. 15. The mall was playing music while people were shopping for Christmas gifts. 16. While the shoppers were looking for the best deals, the employees were handling the crowd.