8. They went to school on foot, didn't they?
-> "went" => Thì QKĐ thể KĐ => Câu hỏi đuôi dùng trợ ĐT "did" ở thể PĐ
CN là "they" => Giữ nguyên
9. A lot of people are bored with the show.
-> bored with: chán nản với ...
10. What about collecting the plastic bags on the beach this weekend?
-> Why don't we + Vo = What about + V_ing: Hãy cùng ...
11. How/What about going to the school cafeteria?
-> Let's + Vo = What/How about + V_ing: Hãy cùng ...
#Chii
#Tired of studying well