Jackson________school two years ago and he________for two years．
| A．leaves；has gone |
| B．left；has been away |
| C．leaves；has been away |
| D．left；has gone |
—________can you finish this English examination？
—In about one and a half hours．
| A．How far |
| B．How often |
| C．How soon |
| D．How long |
—________do you go to the cinema？
—Once a week．
| A．How long |
| B．How far |
| C．How often |
| D．How much |
—I can hardly believe my eyes．Is that you，Lucy？
—Yes．It has been almost 20 years________we were together．
| A．since |
| B．before |
| C．after |
| D．until |
—________will the fog and haze last？
—I’ve no idea．There is no sign of an end．
| A．How soon |
| B．How far |
| C．How long |
| D．How often |