Сделайте раскладку по временам past,present,future: it is a red pen.i am from america.we are doctors.robert is a driver.you are at school.she is a singer.it is a nice cat.they are at home.bob and ben are brothers.lisa is a kind girl..

It was a red pen. I was from America. We were doctors. Robert was a driver. You were at school. She was a singer. It was a nice cat. They were at home. Bob and Ben were brothers. Lisa was a kind girl.
It will be a red pen. I will be from America. We  will be doctors. Robert  will be a driver. You  will be at school. She  will be a singer. It  will be a nice cat. They  will be at home. Bob and Ben  will be brothers. Lisa  will be a kind girl.