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my mother had got the dinner ready by the time the guests arrivedwhat ( ) your mother ( ) by the time the guests arrivedgot the dinner ready划线部位提问

题目详情
my mother had got the dinner ready by the time the guests arrived
what ( ) your mother ( ) by the time the guests arrived
got the dinner ready划线部位提问
▼优质解答
答案和解析
was doing
表示过去进行时
意思是 你的妈妈在客人到来那个时候正在做什么