The director had her assistant ________ some hot dogs for the meeting．
| A．picked up | B．picks up |
| C．pick up | D．picking up |
The development of industry has been ____gradual process throughout _____ human existence, from stone tools to modern technology.
| A．不填; the | B．the; a | C．a; 不填 | D．a; a |
The police are trying to find out the ____ of the woman killed in the traffic accident．
| A．evidence | B．recognition | C．identity | D．status |
---I got a rise in salary! ---_____________.
| A．Yes, I think so. | B．You did? | C．Are you? | D．My pleasure. |
He went home for lunch____ the clock struck twelve.
| A．while | B．immediately | C． right away | D．at once |
I would rather ________ to work after my graduation, but my father would rather I ________ abroad for further education.
| A．go ;had gone | B．go; went | C．went ; went | D．went ; will go |