请问She likes vegetable best.那个vegetable要加s吗

请问She likes vegetable best.那个vegetable要加s吗 boiled vegetable中的vegetable要加s吗 fruit 和 vegetable连用时 vegetable要加s吗 eat vegetable 中vegetable要加s吗 some vegetable要加s吗 vegetable什么时候用加s we have （vegetable）for lunch中vegetable可数吗?加s吗 what are your favorite vegetable vegetable后要不要加s a kind of vegetable 中vegetable 需要加s vegetable She likes vegetable and ＿likes drinking milk. Potatoes are my favourite vegetables.vegetable是否要加s?