1.the police are ___(save) the old man from the fire.
2.when i went back home,i saw someone___(stand) in front of my door.
3.is the water in the river____(harm) to people's health
4.look!___(million) of ants are moving on the ground.
5.maria___(come) from a small city in England.
6.the man is thinking about what ____(discuss) with them.
7.the car didn't start,so ___(final)we decided to go on foot.