联想工作站售后电话:keep the window close 还是closed

keep the window close 还是closed keep the school tidy clean keep off the premises是什么意思？ please keep the windows______(open) Would you mind if I keep the window open? __B__ A.never mind B.Not at all. 为什么不选A crush the window In the window there the window is busy by the window 是什么意思？？ keep the enemies beyound什么意思哦？