【题目】连词成句：my, mother, grandma, phoned, my, yesterday(.)
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【答案】My mother phoned my grandma yesterday.
【解析】
根据所给的单词，my我的，mother妈妈，grandma奶奶，phoned打电话，my我的，yesterday昨天，可以组成句子，My mother phoned my grandma yesterday.我妈妈昨天给我奶奶打了电话。故答案为My mother phoned my grandma yesterday.