fruit and vegetables are healthy food 为什么food用单数?

They vegetables and fruit Eat vegetables and fresh fruit. I like a____ vegetables and fruit fruit and vegetables用单数还是复数? Eat fruit and vegetables?是什么一 Vegetables and fruit are h_for us. He seldom ___(eat) fruit and vegetables. 英语就划线部分提问He likes fruit and vegetables.（fruit and vegetables）_______ _______he______? Tom like to eat vegetables and fruit.把vegetables and fruit画线提问原因~~!： why not eat some fruit and vegetables?(同义句转换)_____ ______eating some fruit and vegetables? My mother likes fruit and vegetables for dinner.就fruit and vegetables提问 why not eat some fruit and vegetables?(同义句转换)_____ ______eat some fruit and vegetables? He likes vegetables and fruit very much.为什么vegetables要加s,fruit不用加s? Do you like vegetables and fruit?为什莫用“and”? eating fruit and vegetables can help us ______________(get) more vegetables and fruit前面用many,much还是more? It's he( )to eat more vegetables and fruit. she likes fish , vegetables and fruit. 改为否定句