The driver tried to ___ the accident by stopping the car suddenly.
6. After a successful operation, Ronaldo has begun to do some exercise to ____ strength.
5. —How did you find your sister in such a big and strange city?—I ____ her in the railway station when I was looking for the police for help .
4. John seems a nice person, ____ I don’t trust him.
3. He thinks I have spoken ill of him, ____ I’m always speaking well of him.
2. ____ many times, but he still couldn’t understand.