(2013·全国Ⅱ，6)Since nobody gave him any help, he ________ have done the research on his own.
| A．can | B．must |
| C．would | D．need |
While seeing the film, what had happened on the battlefield ________ in the old man’s mind.
| A．made a life | B．made a living | C．come to life | D．come to live |
Whendifferent cultures, we often pay attention only to the differences without noticing the similarities.
| A．compared | B．being compared | C．to compare | D．comparing |
With the development of modern society, E-mail as well as telephones an important part in daily communication.
| A．have played | B．is playing | C．are playing | D．played |
I think you’ve get to the point ______ a change is needed, otherwise you’ll fail.
| A．when | B．that | C．where | D．which |
In face of failure, it is the most important to keep up good state of mind.
| A．不填, a | B．a, 不填 | C．the, a | D．不填, the |