Eager to impress the boss

A young executive..................the office late one evening
1. was leaving
2. left
3. has left
when he ............ the CEO standing in front of a shredder with a piece of paper in his hand.
1. was finding
2. founded
3. found
"Listen," said the CEO, "this is a very ................ and important document here, and my secretary has gone for the night.
1. sensible
2. sensitive
3. senzitive
Can you make this thing .............?"
1. working
2. work
3. worked
"...................," said the young executive.
1. Certanly
2. Certainly
3. Certainlly
He turned the machine ............., inserted the paper, and pressed the start button.
1. on
2. off
3. of
"......................... said the CEO as his paper disappeared inside the machine.
1. Excellennt
2. Excelent
3. Excellent
"I just need ...........copy."
1. one
2. the
3. an