C．came out D．came round

　　答案　C

　　解析　come about意为"产生，发生"；come across意为"偶然遇到"；come out意为"出来，出版"；come round意为"过来，苏醒"。根据题意，C是最佳答案。

　　8．-________ should we go?

　　-Another five miles.

　　A．How far B．How long

　　C．How much farther D．How much longer

　　答案　A

　　解析　问路程多远用how far。

　　9．-You look so worried. What's the matter?

　　-I don't know ________ these boring problems.

　　A．what to deal with B．how to do with

　　C．what can I do with D．how to deal with

　　答案　D

　　解析　do with与what搭配使用；deal with与how搭配使用。C项语序错误。

　　10．Remember to ________ a good state of mind even if you should fail plenty of times.

　　A．take up B．brush up

C．get up D．keep up