--Where is John? --He has been busy ______ his homework.

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问题 --Where is John? --He has been busy ______ his homework.

选项 A、to do
B、doing
C、do
D、done

答案B

解析

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本试题收录于：公共英语二级笔试题库公共英语（PETS）分类

公共英语二级笔试

公共英语（PETS）

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--Where is John? --He has been busy ______ his homework.

公共英语二级笔试

公共英语（PETS）

Whatdoesthemanaskthewomantodo?

CommercialclassicalmusicradioinNorthAmericahaschangeddramaticallyoverthepastdecade.Thenumberofstationshasshru

Whenyoubecomeaparent,muchofyourfocusshiftsfromyourownfuturetoyourkids’future.Butoneofthemosteffectiveway

Bythetimeyouretire,there’snodoubtaboutit,yourbrainisn’twhatitusedtobe.By65,mostpeoplewillstarttonotic

We’vereadhowbabiesstarelongerandcrylesswhenheldbyprettypeople,andheardtalesofhandsomechildrendoingbetteri

NisaburoandHirokoOhataareunlikemostJapanesecouplestheirage.Sure,Hiroko,58,isworriedaboutherhusband’shighblo

"Family"isofcourseanelasticword.Andindifferentcountriesithasdifferentmeanings.ButwhenBritishpeoplesaythatth

WhenCarlyFiorinabecameHewlettPackardsfirstfemalechiefexecutiveofficer,theexistenceofherhousehusband,FrankFiorin

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口试老师结合第二节的内容向考生提出2～3个问题。RelatedtoCardla&b1.Doyoulikefootball?Why?2.Haveyoueverseenafootballmatch?3.Doyou

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一项对四JII省某城市人们的健康调查表明，84%的肠胃病患者都有吃辛辣食物的习惯。因此可以断定，吃辛辣食物是诱发肠胃疾病的重要原因。以下()项如果为真，将严重削弱上述论证

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