With more forests being destroyed, huge quantities of good earth _______ each year.
| A．is washing away | B．is being washed away |
| C．are washing away | D．are being washed away |
For areas that receive regular and plentiful rainfall, such detailed crop monitoring（监测）might not be useful or ;
| A．economy | B．economic | C．economical | D．economics |
But the next thing I knew, the car stopped, the airbags had , the windscreen broke, and smoke was coming out．
| A．broken off | B．gone off | C．cut off | D．turned off |
His mother hardly seemed to notice as the boy go of her hand．
| A．let | B．made | C．had | D．got |
The moment we arrived within mobile phone , my phone lit up with lots of messages．
| A．range | B．distance | C．reach | D．extent |
－“Could we put off the meeting?” he asked．
－“ , ” she answered politely．“This is the only day everyone is available”．
| A．Not likely | B．Not exactly | C．Not nearly | D．Not really |