短文改错（共10处错误）：I went out in the morning,when I was back to ho

短文改错（共10处错误）：I went out in the morning,when I was back to home,I found my two uncles have already been here.After lunch,we all went to the
hospital to see my grandma.The doctor only permits two of us to enter the room once so I had to wait my uncles to come
out.Grandma was still not very good.The doctor told us they had decided to operate her next Thursday.I was worrying about
grandma and she was too old.The operation may be too many for her.