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時(shí)間狀語(yǔ)thus far“到目前為止”，與現(xiàn)在完成時(shí)連用，據(jù)此排除B、C。比較從句完整的結(jié)構(gòu)應(yīng)該是…than the thought which has been given thus far，可以把than 看做關(guān)系代詞在從句中做主語(yǔ)，也可以把主語(yǔ)看做是省略了。

　　2. A題句由于主語(yǔ)較長(zhǎng)，采用了倒裝結(jié)構(gòu)，可還原為：the nation-wide movement to support the Kampuchean people in their heroic struggle against the aggression of the Vietnamese is of great significance。movement要求不定式做定語(yǔ)，其他選項(xiàng)均不符合語(yǔ)法規(guī)則。

　　3. Alooking for…分詞短語(yǔ)做came的伴隨狀語(yǔ)，如果選to look for做目的狀語(yǔ)的話，不該有逗號(hào)。

　　4. B動(dòng)詞request要求其主語(yǔ)從句、賓語(yǔ)從句或同位語(yǔ)從句中謂語(yǔ)動(dòng)詞用(should+)原形表示虛擬。該句中that引導(dǎo)的是主語(yǔ)從句。

　　5. Dcan�餿 have done 表示對(duì)已發(fā)生的情況作否定推測(cè)“一定不是/沒(méi)……”，根據(jù)句意只能選D。