Jack______from home for two days now, and I am beginning to worry about his safety.

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问题 Jack______from home for two days now, and I am beginning to worry about his safety.

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

答案A

解析时态题。题意：“杰克现在已经两天没回家了，我开始担心他的安全了。”“连续两天”表示句中动作持续了一段时间，而持续到“现在”则应该用现在完成时，故应用现在完成进行时，答案为A。

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专业英语四级

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