Internet shopping will ready when people make sure that it is safe.
| A．take off | B．take up | C．take over | D．take on[ |
31. We are waiting ______ for your absence.
| A．your explanation | B．to have your explanation |
| C．about your explanation | D．having your explanation |
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 |