They were made ____ fourteen hours a day.
| A．work | B．working | C．worked | D．to work |
Between 4.5 and 3.8 billion years ago, the earth became so ______ that it was not clear whether the shape would last or not.
| A．genuine | B．slight | C．solid | D．violent |
_______ Japan’s nuclear crisis (核危机) will be solved in 2011 is not known yet.
| A．That | B．If | C．Whether | D．What |
Little Tommy was not willing to tell the teacher _______ he had done before.
| A．which | B．how | C．where | D．what |
The boy lying in the bed _______ to his friend that a cock _______ an egg yesterday.
| A．lay; lay | B．lay; lain | C．lied; laid | D．lied; lay |
She _______ the film. She knows nothing about it.
| A．can’t see | B．can’t have seen | C．must see | D．mustn’t have seen |