Thank you everyone, but what about:
1. So, they're or it's can be left out. And can they're be included in the sentence?
Personally, I'd say it's, singular. And I'd put a comma before but because its a compound sentence.
2. Are you saying and should be replaced with or? And - and is incorrect.
Both are okay, but I'd say or because it comes after the word not.
3. I just got 'authentic' from Authentic Philly Cheese Steak.
Authentic means real, genuine. Some opposites are fake, bogus, imitation, ersatz, counterfeit.
A watch that looks like a Rolex might be authentic or fake. But a watch isn't authentic or fake, it's just a watch. Likewise, a steak that looks like a Philly cheese steak might be authentic or fake. But a steak isn't authentic or fake, it's just a steak.
Only Philly is a proper noun. It's the nickname of the U.S. city Philadelphia. So don't capitalize authentic, cheese, or steak.
4. What about this sentence:
We have Shabu Shabu(restaurants) but they're not as authentic and festive as the ones in Japan.
It sounds like Shabu Shabu is a chain restaurants, right? Are there fake Shabu Shabus? Explain, please.
Put spaces before the ( symbol. Use commas to separate the independent clauses of compound sentences.
Can restaurants be left out?
Yes, if you pluralize: Shabu Shabus.