Mary( )housework every week

Mary( )housework every week "my mother has a lot of housework to do every week"中为什么用"to Mary goes to the zoo every week(用last week改写句子) Mary has four Chinese lessons every week,____ ____?反义疑问句 Mary ,often,mother,the housework 造句 every week还是every weeks? twice every week My mothe does the housework every Sunday, every week each week 用法区别 He does some housework every day.(否定句）He——housework every da 英译中every four weeks every fourth week mary plays volleyball every day