the roof of a block of

the roof of a block of on the roof of a block of flats 可以改成on the roof of a flats' block吗 the roof of a block of flats这里的block作什么解释? 英语翻译Once he landed on the roof of a block of flats and on another occasion,he landed in a deserted car park.. A block is hung by a string from the inside roof of a van.When the can goes straight ahead at a speed of 28m/s,the block hangs vertically down.But when the van maintains this same speed around an unbanked curve (radius=150m),the block swings toward t he landed on the roof of a block of flats为什么加s如题···他飞机应该降落在一个公寓的屋顶上啊···为什么加s The house,_____ was destroyed in the terrible fire,has been repaired.A which roof B the roof ofB the roof of which C its roof D the roof翻译+每个选项解释+语法, cell block 是什么?是监狱大楼么?Frank Morris,and the Anglin brothers burrow out of their cells,climb to the top of the cell block,cut through bars to make it to the roof via an air vent. roof over the world the roof over the world of The house ______ was destroyed in the terrible fire ,has been repaired.A.the roof of that B.which roof C.whose roofD.the roof The house,_was destroyed in the terrible fire,has been repaired.A:the roof of whichB:which roof请问 the block of the flat 为啥加一个block? Block A has a mass of 3 kg and Block B has a mass of 5 kg.Just before colliding,Block A has a speed of 4 m/s and Block B is at rest(0m/s).After the collision,Block B has a speed of 3m/s in the same direction that Block A was initially.What is the spe once...on another occasion位置Once he landed on the roof of a block of flats and on another occasion,he landed in a deserted car park 这句中 once...on another occasion是一个短语 那on another occasion的位置不是应该在第二句的he land on与land in有什么区别新概念2第29课Taxi,有句话“Once he landed in the roof of a block of flats and on another occasion,he landed in a deserted car park”中的land in 和 land on 有什么区别 在新概念二中的第二十九课《taxi》中:once he landed on the roof of a block of flats.这里为什么是用过去式,而不是现在完成式,在这里应该是强调他做过这事,而不是强调动作本身?还有介词in和on的使用 The view over a valley of a tiny village with thached roof cottages around a church We gave out a cheer when the red roof of the cottage came __________ view.