【下列句子中均有一处或几处错误,请将错误找出并在后面的横线上改正.1.Inmyfamily,mybrotherplaysthechesswell.2.TherearethirtiethdaysinJune.3.Thefivepersoninthepictureismycousin..4.Thereare52thstudentsin】

　　下列句子中均有一处或几处错误,请将错误找出并在后面的横线上改正.

　　1.Inmyfamily,mybrotherplaysthechesswell.

　　2.TherearethirtiethdaysinJune.

　　3.Thefivepersoninthepictureismycousin..

　　4.Thereare52thstudentsinourclass.

　　5.Threeminuseightequalseleven.

　　6.Theyplantedeightthousandthreehundredtwenty-fivetrees.