He dozed off.
Tom continued reading the newspaper even though the burglar alarm had gone off.
First off, I'd like you to come with me to a department store sale.
It was not until I got off the bus that I realized I had left my umbrella.
Trees give off oxygen and absorb carbon dioxide.
I saw Tom wiping his fingerprints off the doorknob.
I can't turn the shower off. Could you check it for me?
Instead of laying off these workers, why don't we just cut their hours?
He made heaps of money by ripping off naive suckers.
With this talisman, you can ward off any and all evil spirits.
Antibodies fight off infections and viruses.
We'll allow a 5 percent discount off list prices.
I quit my job and moved so I could start off with a clean slate.
I heard she brushed him off, saying "Let's just be friends."
To my regret, my favorite TV show went off the air last month.