When I opened the door, I found my father sitting in his chair, completely _______ in the humorous stories he was reading.
| A．absorbed | B．applied | C．attracted | D．addicted |
Most parents are not __________ the danger of their babies’ eating jelly, which causes most unfortunate incidents to happen.
| A．well aware to | B．very aware of | C．aware that | D．well aware of |
Don’t turn the room __________, as I have just tidied it.
A. inside B upside down C. outside D. inside down
Many people _____ the opening ceremony of 2010 World Expo, which was so amazing.
| A．witnessed | B．participated | C．swallowed | D．handled |
This is the very book _____ I need now.
| A．what | B．which | C．that | D．all |
Not the way he did it but his words _____ criticized by people present.
| A．has | B．had | C．is | D．were |