---How much yogurt do you need for your breakfast?----Two glasses( )enough.括号里填is 还是 are

问题描述:

---How much yogurt do you need for your breakfast?----Two glasses( )enough.括号里填is 还是 are
酸奶不可数该用is

are这里省略了OF YOGURT 应该是Two glasses of yogurt. 玻璃杯可数所以用are