They have been trapped for sevevteen hours.They tried to come up hours( )问题补充中为选项A since B ago C for D since then 为什么

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Theyhavebeentrappedforsevevteenhours.Theytriedtocomeuphours()问题补充中为选项AsinceBagoCforDsincethen为什么They

They have been trapped for sevevteen hours.They tried to come up hours( )问题补充中为选项A since B ago C for D since then 为什么
They have been trapped for sevevteen hours.They tried to come up hours( )问题补充中为选项
A since B ago C for D since then
为什么

They have been trapped for sevevteen hours.They tried to come up hours( )问题补充中为选项A since B ago C for D since then 为什么
B
他们被困了7个小时.数小时前他们就试图出来.
hours ago 数小时前