Question

[Đỗ Huyền Ngọc Bảo Châu]

21. Can you answer the questions?
 Can ………………………………………………………………………………?
22. They have to do their duty every year.
 Their duty ………………………………………………………………………..
23. The mechanic has just repaired the engine.
 The engine …………………………………………………………………….
24. These boy laughed at the teacher.
 The teacher …………………………………………………………………….
25. The teacher is translating this sentence into Vietnamese.
 This sentence………………………………………………………………………
26. The little boy is carrying the bag for the old man.
 The bag ………………………………………………………………………………..
27. We brought some new books to the class this morning.
 Some new books …………………………………………………………………….
28. They planted big trees here.
 Big trees ……………………………………………………………………………….
29. People often wash hands before meals.
 Hands ………………………………………………………….…………………….
30. Her grandmother sewed her many new clothes.
 She 

Chuyển sang câu bị động 

Giúp tui !!!