Agiftisnecessarywhen的精选

问题详情：阅读下面短文，掌握其大意，从A、B、C三个选项中选出最佳选项。AgiftisnecessarywhenoneisinvitedtovisitfriendsinChina.Aftergreetings,thegiftshouldbepassedimmediatelytothehost.RememberthatusuallyChinese...