The car ___________ (wash) by the mechanic before I picked it up
had been washed
The road _____________ (repair) by the council this week.
is being repaired
This cake ________ (bake) yesterday.
was baked
The exams ________ (grade) next week
will be graded
The students should present their project later today
Their (The students') project should be presented later today.
The work ________ (complete) by next month.
will be completed
If he was more careful, he could have avoided making that mistake
The mistake could have been avoided if he was more careful.
Plastic ___________ (invent) in 1907
was invented
Laws on plastic usage should ______________ (introduce) by governments
be introduced
