相关MyfamilyandIhavevisi的文学知识

问题详情：   MyfamilyandIhavevisitedourfriend,Dennis,inChicagoseveraltimesinsummer,butwehardlyvisitedhiminwinter.It’sDecembernow,andhereweareinChicago.Wehavebeenherefortwoweeks.It’smuchcolderinChic...