he didn't-------[buy/bought]that bag yesterday 选buy还是bought

He didn't buy anything yesterday 变为被动语态 Why didn't he buy the ball?同义改写 （ ）did he buy the ball ( Why didn't he buy a ball?（同义句转换） ------- did he buy a ball ------? he didn't-------[buy/bought]that bag yesterday 选buy还是bought He didn't buy anything there befor he lehf.被动语态 翻译:we were all surprised. he didn't come to buy the house.he came to buy the tree. wasn't和didn't的用法He didn't buy the book和he wasn't buying the book 有这么说的吗? My brother didn't know where he could buy this book My brother didn't know ___ ___ buy this book 列句：He bought a house last year.Did he buy a house last year?He didn't buy a house last year.下 Why didn't you buy that dress? 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 The man didn't know which car he should buy (保持原句意思）The man didn't know which car （ ） （ ）每括号限填一词 My brother didn't know where he could buy an English book.(改为简单句) My brother didn't know_____ _____ _____ an English book. He didn't buy the computer because it was too drar.【对because it was too drar提问】 Cathie didn't know(where could we buy the tickets/what was he waiting for)因该选哪个 He didn't tell me ______A.where he bought the new computer.B.where did he buy the new computer.C.where he buys the new computer.D.where does he buy the new computer I didn't buy a dictionary and Tom didn't buy a dictionary,eithera:______I______Tom______a dictionary b:______Tom______I______a dictionary c:I didn't buy a dictionary ________ __________Tom He has to win the competition and buy a watch for me,because he didn't meet me at the station.这句话有什么错误吗?