Never before ______ such a smoke in the room.

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问题 Never before ______ such a smoke in the room.

选项 A、have I read
B、did I read
C、do I read.
D、am I reading

答案A

解析以前我从来没看见房间里有烟。否定词在句首，助动词提前，而且never一般与现在完成时连用。故答案为A。

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本试题收录于： GCT工程硕士（英语）题库专业硕士分类

GCT工程硕士（英语）

专业硕士

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Never before ______ such a smoke in the room.

GCT工程硕士（英语）

专业硕士

Thepassagefocuseson.Byimmersingoreparticlesinwater,.

Stephen:Iwanttosendthispackageparcelpost,registered.Clerk:______?Stephen:Yes,please,forsixtydollars.

PresidentCoolidge’sstatement,"ThebusinessofAmericaisbusiness",stillpointstoanimportanttruthtoday—thatbusinessin

IfonlyI______thebooksonthereadinglistbeforeIattendedthelecture.

Attheresortstouristsmaydothefollowingexcept______.WhatisadvertisedinB?

WhatregulationwasissuedbyNewYorkStateconcerningbeveragecontainers?____.Itcanbeconcludedfromthepassagethat

Customer:Thejeanslookcool.MayItrythemon?Salesman:Sure.______

Duringthepastgeneration,theAmericanmiddle-classfamilythatoncecouldcountonhardworkandfairplaytokeepitselffin

Marie:Yourlittleboyhasdoneagoodjobatschool.Eva:______.

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