Gạch chân và sửa lỗi sai trong câu sau: Robots cannot clean the floor. My sister will be able receive a schoolarship

Gạch chân và sửa lỗi sai trong câu sau:
1. Robots cannot clean the floor
2. My sister will be able receive a schoolarship
3. He could cooked many delicious dishes
4. Because he has a toothache, he can eat anything
5. She can speak English well, but she cannot writes it