1. I don't think the computer was invented_______ the telephone.

2. —Was the heated ice cream scoop invented_______ Chelsea Lanmon?

   —Yes, I think so.

3. The stamps are used________ sending letters.

4. It's said that the emperor Shen Nong discovered tea_______ accident.

5. English is spoken__________ the first language in Canada.

6. The young adults can get relaxation________ reading cartoons or watching them on TV.

7. Seeing their teacher wearing a beautiful dress, all the girls screamed______ jealousy.