—How was ______ they discovered the entrance to the underground palace?
—Totally by chance.
| A. it that |
B. he that |
C. it which |
D. it |
We have every reason to believe that __ 2010 World Expo in Shanghai will be _____ success.
| A．/; a | B．the; / | C．the; a | D．a; a |
There are some students ______ to have known what they don’t really know, which is really harmful to them.
| A．pretending | B．to pretend | C．pretended | D．pretend |
The _____ boy never dares to see the ____ film again.
| A．frightened; frightening | B．frightening; frightened |
| C．frightened; frightened | D．frightening; frightening |
--- We expected you yesterday．
--- I'm sorry, Iyou to say that I couldn't be here until today．
| A．must have called | B．would be calling |
| C．could have been calling | D．should have called |
He is ____our teacher; he is also our best friend.
| A．less than | B．rather than | C．more than | D．better than |