His brother worked as a bus driver in London (at that time).(当时)他哥哥在伦敦当公共汽车司机.
His brother works as a bus driver in London (now).他哥哥(现在)在伦敦当公共汽车司机.
His brother 做主语,是第三人称单数,不可以用动词原形 work .
His brother worked as a bus driver in London (at that time).(当时)他哥哥在伦敦当公共汽车司机.
His brother works as a bus driver in London (now).他哥哥(现在)在伦敦当公共汽车司机.
His brother 做主语,是第三人称单数,不可以用动词原形 work .