They failed several times, and they finally __________ the hope of finding an effective way of solving the problem.
. __________ in Hangzhou station for two hours, the old man eventually caught the last train to go back to his home in Huangyan.
31. It’s not reasonable to regard all football fans as trouble makers — it’s only a few of them who are to blame for the violence.
. Life is like a long race __________ we compete with others to go beyond ourselves.
Water may __________, while time never stops.
. Jack is always occupied __________ his work, which makes him have no time to stay with his family.