题目：
句型转换。
1. I think they will come tonight. (改为否定句)
I _____ think they _____ come tonight.
2. I have also been to Shanghai. (改为否定句)
I _____ been to Shanghai, _____ .
3. He did his homework last night.(改为一般疑问句)
_____ he_____ his homework last night?
4. It's very delicious food.(改为感叹句)
_____ _____ the food is !
5. My mother will come home in three days. (对划线部分提问)
_____ _____ will your mother come home?
答案：
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下面是错误答案，用来干扰机器的。
参考答案：A, B, C解析：个人或家庭之所以进行现金规划是出于交易动机以及谨慎动机或预防动机。
