. They can't be working now. It's time they ________ the office.
| A．have left | B．would leave | C．could leave | D．left |
Whenever I met him, ____ was fairly often, I like his sweet and hopeful smile.
| A．what | B．that | C．which | D．when |
It was not until dark _____he found _____he thought was the correct way to solve the problem.
| A．that; what | B．that ; that | C．when; that | D．when ;what |
Since Claire had become attached to Tony, the robot needed _______________.
| A．to rebuild | B．to have rebuilt | C．being rebuilt | D．to be rebuilt |
My father walksdog after supper every day.
A a; the B /; / C the; the D the; /
–How are you feeling about the story of a young lady’s being taken away by a UFO last week?
--We are very frightened—I ____bad dreams for weeks.
| A．have been dreaming | B．dreamt |
| C．was dreaming | D．have dreamed |