I buy a new car today.这个句子有没有语法错误

I have decided to buy a new car 等于 I have ( ) ( )( ) ( ) to buy a new car I buy a new car today.是个错句子吗? I decided I would buy a new car= I( ) ( ) buy a new car还有一个 she hopes she can go bike riding.=she ( ) ( ) go bike riding He want to buy a new car He decides ________(buy)a new car ___I can buy a new car填空 You should to buy a new car．You should buy a new car．为什么? I am going to buy a new car next mounth.改成一般疑问句句 Will Mr Green buy a new car? I didn't know.合并为复合句 I buy a new car today.这个句子有没有语法错误 I ——(want)——(buy) a new car next year. I can't afford ________ (buy) the new car will you buy a new car or a one 为什么是Who bought a new car?而不是Who did buy a new car? He decided to buy a new car.同义句He decided () () a new car. 为什么是Who bought a new car?而不是Who did buy a new car? I'm going to buy a new car （with/by/use/for）the money I saved he dicided to buy a new car 的同义句