Theoretically, a good screwdriver should last a lifetime, but it rarely___________, usually because it is used at one time or another as ___________ some other tool.
| A．should, a favor for | B．should, a lack of |
| C．does, a way of | D．does, a substitute for |
—You look unhappy. Did you fail the tests?
—I ________ the written papers but didn’t pass the oral examination.
| A．went through | B．went over | C． got over | D．got through |
The government held a special meeting，________ people to contribute more to the victims.
| A．appealing | B．appealing to | C． to appeal | D．to appeal to |
．—Did you listen to the speech?
—No, we ________ it. But we had a lot of traffic on our way.
| A．must have attended | B．must attend |
| C． could have attended | D．should attend |
．The theory is true _______ the hotter a body is, the more energy it gives off.
| A．that | B．when | C． which | D．what |
The desks and seats can be ________ to the height of any child．
| A．devoted | B．adjusted | C． accustomed | D．adopted |