Điền các giới từ thích hợp vào chỗ trống :
1. My mother takes care ____ the family
2. she smiled ____ the child and said "Hello"
3. I'm really worried ____ my brother
4. Milk is good ____ your health
5. Most childrent are scared ____seeing the dentist
6. The dentist looked ____ my teeth
7. Minh has an appoinment _____ 10.30 this morning
8. Dr. Lai filled the cavity _____ Minh's tooth
1. My mother takes care of the family
2. she smiled about the child and said "Hello"
3. I'm really worried about my brother
4. Milk is good for your health
5. Most childrent are scared of seeing the dentist
6. The dentist looked up my teeth
7. Minh has an appoinment at 10.30 this morning
8. Dr. Lai filled the cavity in Minh's tooth