Revise the Following Sentences by Changing Them from Passive Voice

Revise the following sentences by changing them from passive voice to active voice.
-A mistake was made by the associate.
-The boy was chased by the dog.
-The student was failed by the teacher.
-The book was placed on the table by the child.
-The memo was written by my colleague.
-The woman was robbed by the criminal.
-The drug has been recalled by the pharmaceutical company.
-The report has been forwarded to the legal department.
-My résumé was proofread by my brother.
-My computer had been left on for days.