They rowed a boat 用be going to改写句子

i am going to rowed a boat.错在那里? 用be going to 改写句子 将下列句子用be going to改写.英文o , There is a tall building【用be going to和soon改写句子】 It want to eat a bone 用they改写句子 I go to the library after school.用be going to 改写句子. i am going to have lunch at school .用they改写句子 They are going to take acting lessons.(用now改写句子) I am going to have lunch at school.用they改写句子 如何用be going to的形式改写下列句子? 请根据括号内所给提示用be going to 改写句子. I’m doing my homework now.（用be going to改写句子）