一道英语纠错题目On a cold morning a cup of hot drinks is necessary.请说明纠错的原因,

一道英语纠错题目On a cold morning a cup of hot drinks is necessary.请说明纠错的原因,
一道英语纠错题目
On a cold morning a cup of hot drinks is necessary.
请说明纠错的原因,

一道英语纠错题目On a cold morning a cup of hot drinks is necessary.请说明纠错的原因,
On a cold morning a cup of hot drink is necessary.
drink为不可数名词,不可加复数.
寒冷的早晨,一杯热饮很必要.

On a cold morning, a cup of hot drink is necessary.
drink作饮料意思是不可数