1. To understand the situation completely requires more thought than thus far.

　　A.has given B. was given C.being given D. has been given

　　2. Of great significance the nation-wide movement is the Kampuchean people in their heroic struggle against the aggression of the Vietnamese.

　　A. to support B. for supporting

　　C. supportingD. of supporting

　　3. Many farmers came to the city, jobs and for all the other legendary opportunities of life in the city.

　　A. looking for B. to look for

　　C. having looked forD. looked for

　　4. It is requested that an applicant whose undergraduate work is done at another institution two copies of undergraduate transcripts and degrees directly to the dean of the graduate school.

　　A. must send B. send C. are to send D. need send

　　5. You her in her office last Friday; she’s been out of town for two weeks.

　　A. needn’t have seenB. might have seen

　　C. must have seen D. can’t have seen

　　答案解析：

　　1. D时间状语thus far“到目前为止”，与现在完成时连用，据此排除B、C。比较从句完整的结构应该是…than the thought which has been given thus far，可以把than 看做关系代词在从句中做主语，也可以把主语看做是省略了。

　　2. A题句由于主语较长，采用了倒装结构，可还原为：the nation-wide movement to support the Kampuchean people in their heroic struggle against the aggression of the Vietnamese is of great significance。movement要求不定式做定语，其他选项均不符合语法规则。

　　3. Alooking for…分词短语做came的伴随状语，如果选to look for做目的状语的话，不该有逗号。

　　4. B动词request要求其主语从句、宾语从句或同位语从句中谓语动词用(should+)原形表示虚拟。该句中that引导的是主语从句。

　　5. Dcant have done 表示对已发生的情况作否定推测“一定不是/没……”，根据句意只能选D。