1. He looks like he is in another world.
2. He looks like he has a lot of money.
3. He looks like he knows everything.
4. He looks like he is from America.
5. He looks like he is more than 20 years old.
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Are the sentence all correct? In these sentences, is 'like' a conjunction?
Since "like" is followed by a clause in every sentence, it needs to be replaced with "as if." if "like" were followed by a phrase or a word, then it's fine.
In casual English, "like" is used more and more as a conjunction, but in my ears it sounds awful!