题目

听下面一段独白。根据你所听到的内容，在空格中填入恰当的单词完成下面的短文，每空一词。Dear Borg Fence,I have been trying to get in 【1】 with you for weeks about my gate. You fixed it on September 29, but no one has called me back.I was not able to be at home while the workers finished fixing the gate that day. Well, I came back to find that the gate had not been fixed properly. The problem is very 【2】: the nails are not nailed in properly, so every piece of wood is slowly coming 【3】. I know that this job was very small, but even small jobs sho下列物质中，属于纯净物的是（ ）A．“**”牌黄酒B．“**”牌矿泉水C．     液体氧气D．“*”公司的铁矿石