________ fathers are both doctors.
- Can you go to row a boat with us this afternoon?- I'm afraid not. I_______ look after my little sister because my mother is out.
In spring, we can often hear some birds_______ in our school.
——Why not go to see a film? ——That ____ a good idea! Let’s go.
We read 10 ,206 like this________.
There are ____ floors in this building, and my flat is on the ____ floor.