下面的句子中各有一处错误,请把它圈出来并在横线上改正过来.
1.Jenny go to the park yesterday.
2.Are you in Beijing yesterday morning?
3.Gogo eats a bottle of water this morning.
4.My birthday is on August.
5.―Listen!A girl is singing.
―Oh,she is singing yesterday too.
6.My mother write a letter to my Dad yesterday.