1.be going to... 2.beuseful for... 3.be interested in...4.be used to+动词原型 怎么造句

问题描述:

1.be going to... 2.beuseful for... 3.be interested in...4.be used to+动词原型 怎么造句

i am going to buy a book
The book is useful for you.
I am interested in English
Water can be used to wash the room.