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

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WelcomeSpeech1.Roomallocation-RoomnumberThebeginningletterreferstothethree【T1】______ofthecollegeThenumberfo

HowtoTakeLectureNotes1.Whatiseffectivenote-taking?To【T1】thematerialandwritedownkeyelements【T1】______2.Takenot

A、Afully-furnishedapartmentwithtwobedrooms.B、Afully-furnishedapartmentwithtwobathrooms.C、Apartially-furnishedapart

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