Chỉ hộ và coi tui làm đk
11. I will be collected at the airport
12. Football is played all over the world
15. A class dicussion will be held next monday by their teacher
5 The streets are cleaned everyday by the worker
6 This question can be answered by the students
7 The room will be cleaned later
8 The White Palace will be visited next Monday by us
9 The new bridge will be built by the end of the year
10 The room is cleaned everyday