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

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

admin2012-02-18  32
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 根据句意，杰克的失踪是过去发生的事实，且现在仍在持续中，因此要用现在完成进行时。
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