It is only when you nearly lose someone _____ fully conscious of how much you value him.
— May I go and play football with Dick this afternoon, Dad?— No, you can’t go out ________ your work is being done.
He waited ________ the volcano became quiet and he was able to return two days later.
She worked hard ________ everything would be ready by the time he came back.
________ he studies hard, he will never pass the examination.
I criticized him, you know, not ________ I hate him but ________ I love him.