I bought a new dictionary and it ________ me 30 yuan.A.took B.cost

I helped Tom bought a new computer.改错 了 . I ( )a new dictionary.It is very useful.A.bought B.have bought I bought a new bike just nom.(用just改写）I ____just_____a new bike. She said:i bought a new bike. she said she_____ _____ a new bike. I bought him a new watch(改为同义句) I bought —— —— —— him.I bought him a new watch(改为同义句) I bought —— —— —— him I ____ a new drss.I ____ it in the shop near the gas stationA bought,have bought B bought,bought C have bought,bought 翻译,选择,并说明理由! i bought a new bike just now用just改写 i（ ）justi bought a new bike just now用just改写i（ ）just （ ）…… I _____ a new dictionary.Look!It's very useful.A.bought B have bought 选B为什么呢 I bought a new kite for you .I'll give you it tomorrow.哪里有错?非诚勿扰 Peter bought a pair of new trousers.I want to buy_____,too.A.a new one B.a new pairC.a new ones I bought a new dictionary and it ________ me 30 yuan.A.took B.cost This is _____ new dress I bought yesterday.A a B the 请问该选哪一个? I bought a new中间填a字母开头的单词 with the money. He said ,“I bought a new bike yesterday. ----He said he had bought a new bike the day before.宾语从句中yesterday为何变为the day before? I have just bought a new bike 这里为什么用bought不是说现在完成时不用瞬间动词。而应该用延续性动词吗这里为什么用bought I bought a new bike yesterday.----- ----- Ming Ming (明明也买了一辆) 怎么填? I bought a new bike yesterday.(改为否定句和一般疑问句) I bought a new car just now.用just怎么改写