Bob has made a lot of promises, but______of them have been carried out.
| A．none | B．each |
| C．either | D．neither |
Once upon a tine，he________in the mountains．
| A．lives |
| B．will live |
| C．lived |
| D．is living |
This book is so________that all the kids like it．
| A．interest |
| B．interesting |
| C．interests |
| D．interested |
Unless it________next week，we________to Mountain Tai．
| A．rains；go |
| B．will rain；will go |
| C．rains；will go |
| D．will rain；go |
As soon as she________in Beijing tomorrow，she________you·
| A．arrives；calls |
| B．will arrive；will call |
| C．will arrive；calls |
| D．arrives；will call |
As students，we should try________hard from now on．
| A．study |
| B．to study |
| C．studying |
| D．to studying |