my cousin says orange juice tastes goodMy cousin says orange juice taste good in summer 是taste还是三单

my cousin says orange juice tastes goodMy cousin says orange juice taste good in summer 是taste还是三单
my cousin says orange juice tastes good
My cousin says orange juice taste good in summer 是taste还是三单

my cousin says orange juice tastes goodMy cousin says orange juice taste good in summer 是taste还是三单
是 tastes 这是一个由that引导的宾语从句,这句话完整的应该是：
My cousin says that orange juice tastes good in summer that 引导的从句做says的宾语,而orange juice 则是从句中tastes 的主语

应该用 tastes
主语是 orange juice 不可数名词，所以动词用三单 tastes


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三单加s