They eat ice cream for lunch.（对ice cream进行提问）
问题描述：
They eat ice cream for lunch.（对ice cream进行提问）
He eats lots of vegetables at school.（对at school 进行提问）
do eat dinner what for you （连词成句）
答
What do they eat for lunch?
Where does he eat lots of vegetables?
What do you eat for dinner?