----- Nội dung ảnh -----
```
9
Fill in the blanks with "in", "at" or "on"

1. I was born __________ August 10th.
2. Hi, I am an engineer. I go to work __________ a big factory. I was born 8:00 a.m. I was born __________ 1970.
3. I am a worker! I start work __________ 5:00 a.m.
4. I can’t be at home __________ this morning. Can you phone me __________ the air terminal?
```

(Biện vào chỗ trống với "in", "at" hoặc "on")