____ well prepared you are , you still need a lot of luck in mountain climbing.
| A．However | B．Whatever | C．No matter | D．Although |
The time he has devoted in the past years _______ the disable is now considered ________ of great value.
| A．to help; being | B．to helping; to be |
| C．to help; to be | D．helping; being |
With the development of science and technology, people’s life _______ in the past few years.
| A．improved | B．has improved |
| C．is improving | D．had improved |
We have moved into a four-room flat so far. Our room is between _____.
| A．Mary’s and Helen’s | B．Mary and Helen’s |
| C．Mary and Helen | D．Mary’s and Helen |
---I wonder why Mr Green hasn’t showed up at the meeting yet.
---I’m not sure, but he _______ in a traffic jam driving here.
| A．could be stuck | B．might stuck |
| C．might have been stuck | D．must have stuck |
When I got to the cinema, the film _____ for five minutes.
| A．had begun | B．has been on |
| C．has begun | D．had been on |