My nephew ______from home for three days now, and I am beginning to worry about his safety.

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问题 My nephew ______from home for three days now, and I am beginning to worry about his safety.

选项 A、has been missed
B、was missed
C、has been missing
D、had been missing

答案C

解析 miss一词的-ing形式和-ed形式的区别及时态一致。missing为形容词，表示“(人或物)下落不明，失踪的”；missed是过去分词形式，与be动词连用，为被动关系，表示“被错过的”。依句意，此处应取“失踪的”这一含义。排除A、B。由句中的时间状语for three days now可确定用现在完成时，因此选项C正确。

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专业英语四级

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My nephew ______from home for three days now, and I am beginning to worry about his safety.

专业英语四级

Readcarefullythefollowingexcerptonparents’highlyinterestinsharingtheirchildren’sphotosonline,andthenwriteyour

A、Hesawtheadvertonanewspaper.B、Heheardaboutitfromhisfriend.C、Helearntaboutitfromajobcentre.D、Hesawthead

A、Heneedstotransfertoanotheruniversity.B、Hewantsthewomantomakeadecision.C、Heneedsadviceaboutschooltransfer.

BanonPublicSmoking1.GoalinspeakingAbanofsmokingfrom【T1】【T1】______2.Causeofillnessesand【T2】【T2】______Riskofhe

Thesemagnificent_______buildingsdemonstratethegreatintelligenceofthelaboringpeople.

AirPollutionAirpollutionconsistsofchemicalsorparticlesintheair/thatcanharmthehealthofhumans,animals,and

A、Thebooksaretooexpensive.B、Theclothesareallwinterclothes.C、Hedoesn’thaveasuitcase.D、Therearetoomanyclothes.

(1)NOTallthatMrs.Bennet,however,withtheassistanceofherfivedaughters,couldaskonthesubjectwassufficienttodra

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