– Will you waste your time and money on that? -- Certainly _______.
| A．I not | B．don’t | C．not | D．no |
30. With little knowledge about the area he succeeded ______ many researchers failed.
| A．the place where | B．in place | C．while | D．Where |
29. A very beautiful scene spreads in front of the mountain, at the foot of which ______.
| A．lies a small village | B．does a small village lie |
| C．a small village lies | D．is lying a small village |
28. What was unexpected was that the disrespectable fellow ______ the old man.
| A．could have robbed | B．should have helped | C．should rob | D．might have helped |
27. I wonder whether the police ______ that lost child or not
| A．have found | B．has been found | C．have been found | D．has found |
26. Jerry, why ______ you leave your things on the floor like this?
| A．would | B．need | C．must | D．May |