With the rapid growth of population, the city ____ in all directions in the past five years.
| A．spreads | B．has spread |
| C．spread | D．had spread |
The survey shows that a large number of teenagers are __________cigarettes nowadays.
| A．devoted to | B．related to | C．connected to | D．addicted to |
Rita_______two hours every Sunday afternoon to spend with her son.
| A．sets out | B．sets away | C．sets aside | D．sets off |
Only when something gets lost _____________.
| A．can you realize how important it is to you |
| B．how important you can realize it is to you |
| C．you can realize how important it is to you |
| D．can you realize how important is it to you |
She’s developing into someone who’s going to become very poor and require ______.
| A．looked after | B．being looked after |
| C．looking after | D．to look after |
With more forests being destroyed, huge quantities of good earth _______ each year.
| A．is washing away | B．is being washed away |
| C．are being washed away | D．are washing away |