Mary at the bus stop for about an hour when Tom finally came and started to argue about what before.

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问题 Mary ______ at the bus stop for about an hour when Tom finally came and started to argue about what ______ before.

选项 A、waited, happened
B、have waited, has happened
C、had waited, was happened
D、had been waiting, had happened

答案D

解析时态判断题。根据从句时态(came and started)和主句时间状语for about an hour可以推断第一空格为过去完成时态，排除A，B。再根据happened和came，started动作发生的先后顺序排除C。因此D为正确答案。句意：当汤姆来解释发生了什么事情时，玛丽已经在车站等了近一个小时了。

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本试题收录于：英语题库普高专升本分类

英语

普高专升本

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Mary ______ at the bus stop for about an hour when Tom finally came and started to argue about what ______ before.

英语

普高专升本

Ishouldbegladto______youonthesubjectassoonaspossible.

Someofthestudentsinhisclassseem______todotheirassignments.

Otherexperimentshaveshown【61】thebrainneedstimeto"digest"【62】hasbeenlearned.Thetimenecessary【63】thisis5to1

Muchtothestudent’s______,theexamwaspostponed.

Becauseofherpeculiarcharacteristics,shehasalotofdifficulty______friendswithherclassmates.

Allgames______becauseoftherainstorm,manystudentscoulddonothingbutstudyintheclassroom.

InWashingtonD.C.,1600PennsylvaniaAvenueisaveryspecialaddress.ItistheaddressoftheWhiteHouse,thehomeofthe

Scientistsusedtoexplore【31】thesurfaceoftheocean.Nowthey【32】belowthesurface,too.Theywanttoknowabouttheoceanwa

Youcannotbe______carefulwhendrivingacaronthesuperhighway.

Thereareonly______factoriesinthiscity______before.

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胎儿不具有民事权利能力，不得成为民事法律关系的主体，但《继承法》规定遗产分割时，应当为胎儿保留必要的份额。()

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