His eating habit isn't good.这一句中为什么要用eating而不能用eats

His eating habit isn't good.这一句中为什么要用eating而不能用eats his eating habit are quite good翻译 My eating habit ()()()his Good eating habit 英语作文 写作:a good eating habit Shi has good eating habits.为什么eat要加ing.为什么habit要加s? my eating habits are pretty good为什么habit要加s? Good eating habit suggestion英语作文 DO you have a good eating habit 英语作文《good eating habit》50字 英语作文《Good eating habit》50字左右 David had a good eating habit