"John is watching TV and talking with Anna, his sister."

"John and Anna are watching a cartoon on TV now."

"They are on vacation"

"Their mother, Juliet, is cooking and talking with a friend on the cellphone."

"Juliet is very busy at the moment."

"Their father, Bryan, is working in a big store"

Explicação:

se é pra circular as sentenças no tempo presente são essas partes que voce tem q circular, eu acho, espero ter ajudado, desculpe se errei