I believe Nihilist_Frost's answer is correct, but I'm not sure it's clear. Let me word it another way.
You can say [subject] [verb] [adjective] when the verb is a word that means something is, becomes, appears to be, or similar meanings. That is, verbs that indicate a state of being.
Sally is happy.
Sally became happy.
Sally looked happy.
Sally smelled delightful.
Some of these examples can be tricky because the verb can have a very different meaning if used without an adjective.
"Sally looked happy" means that Sally appeared to be happy. Someone else looking at Sally would conclude she was happy. But "Sally looked carefully" means that Sally examined something with great care. Or simply, "Sally looked", means that Sally directed her attention to something.
Simililary: "I got angry" means that I became angry. But "I got a pencil" means that I obtained a pencil. If you think of it in a certain way the meanings of "got" are related: "I got angry": I acquired the attribute of anger. "I got a pencil": I acquired the object of a pencil. But if that doesn't help you understand it, just think of it as two different meanings of "got".