--- Now lots of teenagers spend a lot of time playing computer games.
--- Yes. Teachers and their parents should prevent them ___________ too much.
| A．to play | B．play |
| C．plays | D．playing |
—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 |
Miss Li________English in this school since she moved to this city from her hometown．
| A．taught |
| B．has taught |
| C．was teaching |
| D．had taught |
They________here for more than ten years．
| A．live |
| B．lives |
| C．are living |
| D．have lived |
The famous writer________eight popular books since 2005．
| A．writes |
| B．wrote |
| C．has written |
| D．is writing |