单选题：__________beforeyouleavethelab.

题目分类：中学英语
题目类型：单选题
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题目内容：

__________beforeyouleavethelab. A．Makesurethatthewindowsareshut
B．Tomakesurethatthewindowsareshut
C．Makingsuretoshutthewindows
D．Tobesuretoshutthewindows

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答案解析：

Shetoldherneighbourthatshe__________thewell-knownscientistif

Shetoldherneighbourthatshe__________thewell-knownscientistifshehadattendedthelec

分类：中学英语题型：单选题

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Itissaidthatagraveofamiddle-agedman__________about2300BCwasf

Itissaidthatagraveofamiddle-agedman__________about2300BCwasfoundbysomeEng-lishar

分类：中学英语题型：单选题

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Thenewlibrarianstilldoesn'tknow__________theout-of-datenewsp

Thenewlibrarianstilldoesn'tknow__________theout-of-datenewspapersanmagazines.A．w

分类：中学英语题型：单选题

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根据以下材料，回答题Paragraph1Scientistshavelearnedalotaboutthekindsof

根据以下材料，回答题Paragraph1Scientistshavelearnedalotaboutthekindsofpeopleneed.Theysay

分类：中学英语题型：单选题

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你的英语学习情况怎样?

分类：中学英语题型：单选题

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