1. Take an umbrella with you. It might rain later.
2. This can't be my book. My brother’s homework is inside it!
3. That must be Sarah ringing. She promised to call this evening.
4. I’m not sure where Dad is. He might be in the garden, or maybe in the garage.
5. This photo must belong to John. I’m sure that’s him and his family!
6. The train station might be this way, but I’m not sure.
7. It can't be 5 o’clock already! I’ve only just got home from school!