题目内容：

She often _____ _______ (keep talk )yesterday.要原因

优质解答

keeps talking；
keep doing,表示“不断（老是）做某事”的意思；因为she是第三人称,动词要用单三的形式.；

追问：

yesterday 不是过去式吗

追答：

改为kept talking；参考例句： They usually (often) went shopping together last year.