“Must we do it now?” “No, you _____.”
| A．won’t | B．needn’t | C．can’t | D．don’t |
He devoted himself ________ to his research work, having no time to play.
| A．exactly | B．gratefully | C． loosely | D．entirely |
The girl looked at me with a ________expression at the ______ computer program.
| A．puzzled , puzzling | B．puzzling, puzzled |
| C．puzzling , puzzling. | D．puzzled , puzzled |
The factory used 65 percent of the raw materials, the rest of which ________ saved for other purposes.
| A．is | B．are | C．was | D．were |
---How could you _______ my sister so easily in the crowd ?
---Because she stood out in a red dress.
| A．pick out | B．pick up | C．take up | D．take out |
Not until the motorbike looked almost new ______repairing and cleaning it.
| A．he stopped | B．did he stop | C．stopped he | D．he did stop |