1.Cho dạng đúng
1. Nam is very happy (1-help) his grandparents with (2-plant) roses in the garden
2. The statue (3- break) while it (4-move) to another room in the museum
3. People used (5-make) fire by ( 6- rub) two sticks together
4. It's our fault to keep Alice (7- wait) so long . We (8-inform ) her in advance