Put the questions to the underlined parts of the sentences

Why did he miss many classes?
When did toms father teach him how to drive?
Where did I work when I lived in Manchester?
Which plan did last meeting the faculty board  approve ?
What companies did begin to make word processing  software two?
How many millions have they already invested in this business?
Who failed exams because she missed many classes?
What has she already looked through?
How many times has she been dismissed  from the job?
Where have they already borrowed  the money?