Something must have happened on their way here. Or they ______ by now.

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问题 Something must have happened on their way here. Or they ______ by now.

选项 A、should have arrived
B、should arrive
C、would have arrived
D、would arrive

答案C

解析 “must+ have+ 过去分词”表示对过去事实的推测。例如：The road is wet. It must have rained last night. (路是湿的，昨天晚上肯定下雨了。)“should+ have+过去分词”表示对过去动作的责备、批评。例如： You should have gone over your lessons.(你应当把功课复习好。) 本句的意思是：“路上肯定出事了，否则他们现在已经到了。”由句子意思推知，此句只是一个表示和过去事实相反的虚拟语气句子，并没有责备的意思。因此正确答案应该是C．

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成人本科学位英语

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Something must have happened on their way here. Or they ______ by now.

成人本科学位英语

Ifyoudon’thaveyourfilesprotectedwhileworkingonthecomputer,youmighthavethem______byaccident.

Andreahadneverseenanoldladyhitchhikingbefore.However,theweatherandthecomingdarknessmadeherfeelsorryforthel

Fewwouldquestionthepositiveimpacttechnologyhashadoneducation.E-mail,theInternet,andsoftwareprogramshavespedup

In1798thepoliticaleconomistMalthuspredictedthatintimemankindwouldfacestarvation,havingoutgrowntheavailablefood

Sportingactivitiesareessentiallymodifiedformsofhuntingbehaviour.Viewedbiologically,themodernfootballerisinrealit

ThecurrentemergencyinMexicoCitythathastakenoverourlivesisnothingIcouldeverhaveimaginedformeormychildren.

Americansusuallyconsiderthemselvesafriendlypeople.Theirfriendships,however,tendtobeshorterandmorecasualthanfri

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