改错The photograph revealed a group of mountain climbers who had strung a twenty-feet rope between The photograph revealed a group of mountain climbers who had strung a twenty-feet rope between two particularly dangerous.
问题描述：
改错The photograph revealed a group of mountain climbers who had strung a twenty-feet rope between
The photograph revealed a group of mountain climbers who had strung a twenty-feet rope between two particularly dangerous.
答
twenty-feet 改为twenty-foot
答
The photograph revealed a group of mountain climbers
who had strung a twenty-feet(foot 因为加了连字符,要用单数) rope between two particularly dangerous.