His mother often goes to work at 7.45 in the morning and comes b__home at6.00急!
问题描述：
His mother often goes to work at 7.45 in the morning and comes b__home at6.00急!
要求填写单词b开头的,如题
答
back 回来
他的妈妈经常是早上7.45去工作,在6点回家.