按每小题后的要求转换下面的句子，每空一词。（每空0.5分，满分5分）
【小题1】Jorden takes exercise three or four times a week. (对划线部分提问)
How often what; buy does Jorden take exercise?
【小题2】 I bought a newspaper on my way home yesterday. (对划线部分提问)
has he did youspent on/buying on your way home yesterday?
【小题3】 He has never been to Shanghai before. (完成反义疑问句)
He has never been to Shanghai before，have fun/enjoy myself ?
【小题4】The camera cost him 680￥last month.(改为同义句)
He 680￥ the camera last month.
【小题5】 I’m sure I will have a good time in the ing school trip. (改为同义句)
I’m sure I will in the ing school trip.
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解析：
【小题1】对频率提问的用多久一次how often，后跟一般疑问句，故本题空格处填How often。
【小题2】对于事物提问的可用疑问词what，后跟一般疑问句，谓语动词还为原形buy，故本题空格处填what; buy。
【小题3】反义疑问句前句为否定，后半句用肯定的结构，本题前半句表示否定的含义，故后半句使用助动词has加人称he，故本题空格处填has he。
【小题4】本题的含义为他上个月在照相机上花费680元，某人花费通常用spend，本题是过去，用spent，在某事上可用介词on或动词doing，故本题空格处填spent on/buying。
【小题5】have a good time表示玩得开心的含义，也可以用have fun或enjoy myself。