4_questions 1_are meaning of these sentences same? 对不起，让你久时间等了！ 对不起，让你久等了！ 2_are these sentences same in meaning? 我来晚了。 我晚来了. 3_are these sentences same? 大卫，还你词典！ 大卫，还你的词典！ 4_ what are meaning these sentence? 那借我看看，行吗？ 我们快进电梯去吧！