I live far from my school， so I always go to school ________ bus.

He still drinks a lot and often gets drunk, do you know that? — Yes. But I don’t know how I can ____ him to give up. [ ]

There was a time ______ I thought my dad didn’t know a thing about being a good father.

He made a mistake, but then he took action tochange the situation ________ it got worse.

StephenHawking can’t walk or even speak，_____he has become very successful.