The old engineer talked of the difficulty they ___ the tower

They talked in detail about the ___ of setting up an experim They talked and talked ____ they got to the end of the road. on the top of the hill ___ a TV tower the tower of London they talked of the things and persons------they remembered i People in the southwest of China have _______ difficulty ___ They talked ( ) after school life of the Yong Pioneers. The difficulty of English study 大学英语20题在线等1.They talked in detail about the ___ of setting u The Tower Of Eternity是什么意思 the Leaning Tower of Pisa THE TOWER OF LONDON怎么样