My food and drink is healthy but some of them is unhealthy.为什么是错的急……本人初一

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My food and drink is healthy but some of them is unhealthy.为什么是错的急……本人初一

My food and drink is healthy but some of them is unhealthy.为什么是错的急……本人初一
My food and drink is healthy but some of them is unhealthy.为什么是错的急……本人初一

My food and drink is healthy but some of them is unhealthy.为什么是错的急……本人初一
把两个is 都换成are,因为都是复数.