He was reading a very interesting story, completely_____to the outside world.A.being lost B,lost答案为B.都是被动的,A不行,怎么解释啊?

When he was ver young,Bill____ ____pictures very well He was heard() out (go)When I was reading a book.he was heard () out.(go) He was reading a novel written by Charles Dickens.翻译 He was sleeping___she was reading a magazine. A.He was sleeping___she was reading a magazine. A.until B.before C.after D.while While he was waiting for the bus, he was reading a newspaper.为什么用while引导 When I ,he in his room.A.was sleeping:was reading B.slept:read C.was sleeping:readed D.slept:was reading He sat in the armchair,reading a newspaper.可以写成He sat in the armchairand was reading a newspaper.或He sat in the armchair,he was reading a newspaper. he was sitting in a chair reading when we went into his study分析句子成分 He was reading a book at this time yesterday.改为被动语态 One morning when he was reading his newspaper on the train.A后面的 One day George went to the library.he was reading a science这篇完形,全部 她边等车边看书.He was reading ( )she( )for a bus He was reading a c___ of the daily newspaper.填单词 he was sitting in the chair,( )a book.A readhe was sitting in the chair,( )a book.A read B was reading C having reading D with reading.而选C的原因 I was writing a letter ,He was reading a newspaper（用适当的连词连成一个复合词语） He is reading a book. 西班牙语a ver Complete these sentences . Use a suitable form of each word in the box .correction encouragement enjoyment explanation fluency misunerstanding progress prnounciation 1. He isn't Chinese , but he's ______ in Chinese .2. The first lesson was ver