Написать предложение в Present Simple и в Perfect Simple Например: visit the Zoo (have done)
they were going to visit the Zoo and they have visited the zoo.

write their names on the Great Wall of China (have done)

They were going to write their names on the Great Wall of China and they had written them.

they visits the zoo

they have visited the zoo

they writes  their names on the Great Wall of China

 they have wrote their names on the Great Wall of China