The food and the oil they use (are/is) not clean or healthy enough.这里应该用are还是is,为什么?

问题描述:

The food and the oil they use (are/is) not clean or healthy enough.这里应该用are还是is,为什么?

用 are,因为主语是 food and oil,两个东西.为什么不用就近原则前面是两个并列,用 and 连接的,“就近原则”不能用。