Drugs can do great harm (危害) not only to you but also to your family. You must be _________them.
—Would you mind me ______ TV?—Of course not.
My mom allows me ______ computer games once a week.
Tom was so tired that he lay down and ________ quickly.
---What was your sister doing at this time yesterday?---She was reading a magazine _______I was writing an e-mail at home.
When I came into the room, I saw a cat ______ under the table.