三种表将来时的方式的区别：
1.will +动词原形构成的将来时表示主观意愿,未经事先精心计划或打算.可用于各种人称.
Eg1. There is someone at the door. I will go and open it .
Eg2. Who will go and help that poor old man ?
2.be going to +动词原形强调计划，安排要发生的事或有迹象要发生的事.
Eg1.He is going to buy a new car next week.
Eg2.Look at the dark clouds, I think it is going to rain soon.
3.shall +动词原形构成的将来时主语通常是I或 we并且在肯定句中常被will +动词原形构成的将来时代替,但在疑问句中Shall I…../ Shall we…..? 常用来征求对方意见.
Eg1. Shall I /we going fishing tomorrow?
Eg2. When shall we meet?
由题目中提供的语境，可以看出来，提问者想询问的是被提问者计划好的打算，故选择第二种。。
这种解释你还满意咩？
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