open the brackets put the verbs into the present indefinite the presentcontinuous or the past indefinite.
The pupils ( to write) down their homework everi lesson.
The pupils (to write)down their homework now.
The pupils (to write)down their homework five minutes ago.
My uncle (to travel) around the USA everi year.
My uncle (to travel) around the USA now.
My uncle (to travel) around the USA last month.