作业精灵老师示例：
S1：What's Yang Ling going to bring to the party?
S2：She is going to bring some toys to the party.
S1：What's Wang Bing going to bring to the party?
S2：He is going to bring some fruit from home.
S1：What's Su Hai going to buy for the party?
S2：She is going to buy some snacks and drinks for the party.
