Simon () while he () his bicycle and hurt himself.a.fell;was riding b fell;were riding c had fallen;rode d had fallen;was riding这题是选a还是d,为什么

Simon was riding to school( )he was hit by car is morning.括号内为什么不能填while was riding 是可持续动词,hit是不可持续动词,as 和while应该都可吧? Simon was riding to school( )he was hit by car is morning.括号内为什么不能填while ?was riding 是可持续动词，hit是不可持续动词，as 和while应该都可吧？ Simon What ( ) Simon ( ) (play)?He is playing volleyball. Simon isn't thin.He is s____. While he was e() Simon () while he () his bicycle and hurt himself.a.fell;was riding b fell;were riding c had fallen;rode d had fallen;was riding这题是选a还是d,为什么 The study is Simon's (f )room.Simon often stays in the kitchen while his mother ( m )meals. He fed the tomatoes to the ______Activity of Simon he has a friend is called Simon.(改错) She asked Simon where he had been.的句子成分 She asked Simon where he had been.划分句子成分 He's in New York with his cousin,Simon. 帮我一个同义句 Simon wonders where he could hide .Simon wonders where he could hide .Simon wonders （ ） （ ）（ ）. He died while he () (opera）on He's name is simon和His name is simon那个对,还是都对?说明白了给分 simon did not know where he could go for help的同义句 simon did not know where ( ) ( ) for help ----do they call------?-Simon A.What;he B.How;him C.What;him D.How;he