1. There were some books and pens on the desk just now.(改为否定句) 

There   books and pens on the desk just now.

10. The little boy is afraid of   (listen) to ghost stories.

9. —Why didn't you eat the meat this morning? —Because it   (smell) bad.

8. We are thinking hard to make the baby stop   (cry) .

7. We decided   (take) a plan to Hainan for a holiday.

6. We were happy that we   (win) the football match last week.

5. It's true that light faster than sound,   .(travel)

4. Dodos   (live) on the earth long ago. We can't see them again now.

3. The policeman put on his coat and   (go) out at once.

2. It's interesting   (look) after a lovely dog.