Why didn't he buy a ball?（同义句转换） ------- did he buy a ball ------?

Why didn't he buy a ball?（同义句转换） ------- did he buy a ball ------? Why didn't he buy the ball?同义改写 （ ）did he buy the ball ( Why didn't you buy that dress? l didn't have a clue why he disappeard. Nobody knows to work yesterday. A. why didn't he come B .why he didn't come C.why did he not come.选哪个,都帮帮忙 why didn't you buy ____ for yourself? why didn‘t you buy anything for yourself的翻译 Why didn't he like to do when he was a student 这句式怎么翻译 The reason ＿he didn't come was ＿ he was ill .A、why ,that B、 he had a bad cold and _____was why he didn't comethis 0r that...and why? She didn't buy the car.It was __ she didn't have enough money then.A why B because C that D how 要有理由哦~ 列句：He bought a house last year.Did he buy a house last year?He didn't buy a house last year.下 He didn't buy anything yesterday 变为被动语态 why didn't pick up that he was friendly just because I had a car? 列句：He bought a house last year.Did he buy a house last year?He didn't buy a house last year.列句：He bought a house last year.Did he buy a house last year?He didn't buy a house last year.下个句子来写：He lost his umbrella yesterday 英语句子成分划分He didn't come.That is why he didn't know he was ill.that is ---he didn't come yesterday a.when b why c how d that when the student was asked why he was late,he didn't say a word同义句是什么