11. No one has opened that box for the past hundred years.
=> That box____________________________________________________
12: The fire has destroyed many houses.
=> Many houses ____________________________________________________
13: The children are carrying the chairs into the house.
=> The chairs ____________________________________________________
14.They awarded him the Nobel Prize for medicine in 1946.
=> He ____________________________________________________
15. We saw him leave the office at 6 o’clock this morning.
=> He ____________________________________________________
16: Why didn’t you report the accident sooner? => Why wasn’t____________________________________________________
17.Somebody has taken some of my books away.
=>some of my books
18. Mary is cutting a cake with a sharp knife.
a cake
19. The children looked at the woman with a red hat.
the woman
20. They have provided the victims with food and clothing.
the victims