jim wants to get good grades in the math exam so he works hard at it.为什么用介词 at?

jim wants to get good grades in the math exam so he works hard at it.为什么用介词 at? He wants to get money. goo...to英语造句 Jim wants to buy tings 的同意句 Jim wants to buy a bicycle.改为否定句 Jim,basketball,wants,watch,to,the,game连词成句 Jim wants to buy things.（改为同义句）Jim wants to buy things.（改为同义句）Jim wants to buy things.（改为同义句）Jim wants to buy things.（改为同义句）Jim wants to buy things.（改为同义句）Jim wants to buy things. Jim's mother wants to buy __ __ __ (一双) shoes for Jim的英语翻译 Jim wants to join the Chinese club.对划线部分提问(划线部分是Jim) want club can Jim wants to join?Jim后want要不要加s是what Jim wants to go to the club.(改为一般疑问句)_____ Jim _____ to go to the club? Jim is always the __(one) to get to school im Green ___ a lot of work after school.He wants to get money.Jim Green___1___a lot of work after school.He wants to get money.He works in a big shop after school___2___two hours every___3___.After school every day,He___4___a bus to the shop.He___5__ Jim only wants to get good _____(分数) in the final exam应该填什么 还有一个 妈妈要求我在考试中取得好成绩 Mother asked me to —— —— —— in exams 三个空 Jim wants to go boating and his parents want to go boating too.(同义句转换）Jim wants to go boating,and ______ ______his parents She wants to get some chocolate.(改成反义疑问句) She wants to get some nice stickers on her birthday she wants to get ready for the show