句子反复磨耳朵（高级）86-90

86.When we arrived at the house, Chin and Chilla were sitting at the top of a broad flight of stairs.当我们到达房子时，Chin 和Chilla 坐在一个宽阔楼梯的顶端。87.This drawing is less than great. He needs to do something with the line here at the back of the leg.这幅画不太好，他需要对腿后面的线条做点修改。88.They say you should consult the past if you want to learn about the future. History has a lot to teach us.他们说，如果你想了解未来，你应该回顾过去，历史有很多东西值得我们借鉴。89.Your technical manager arranged a meeting for 1:00 p.m. on April 6, but how about April 7, at 10:00 a.m.?你们的技术经理安排了4月6日下午1：00的会议，但是你觉得4月7日上午10点怎么样？90.I am a little bit afraid that he will not prepare anything because I have not seen a presentation of his with presentation material.我有点担心他不会做任何准备，因为我没有看到他为他的报告准备整理材料。