l have covered 30 pages already

l have covered 30 pages already we have got it covered have we covered everything是什么意思 covered covered The road__with __leaves leads to the villageA covered fallenB covering fallingC covered fallingD have covered having fallen he was reported to have covered 30 miles on foot that day.为什么用have done?既然是报道之前就走完了 那为什么不用过去完成时呢？ 请问这句话怎么理解?服装上的纽扣.CF placket to have X5 18L 2 hole eyelet buttons covered with black satin fabric.这句中的covered with black satin fabric.是指在什么地方加黑色色丁布?是不是用黑色色丁布把整个纽 l have Is there anything else you would like the seminar to have covered?翻译, How many pages have you covered 现在完成时? 有多页面 你覆盖? 求翻译 we have covered a lot of ground together.是啥意思 It rained hard and soon the road_______water A.covered with B.have kept C.filled with D.was coveredD.was covered with Be covered 什么是Covered be covered was covered be covered