He spends 100 yuan on books every year.同义举转换、两种
问题描述：
He spends 100 yuan on books every year.同义举转换、两种
答
1He spends 100 yuan in buying books every year。
2 It costs him 100 yuan to buy books every year 。
答
1.Books cost him 100 yuan every year.
2.He pays 100 yuan for books every year