They have flags because a flag can show one of two things : The lords coat of arms, and so which noble owns the castle the colours of the lords  mater for an example a kings coat of arms or a country's flag , showing where its allegiance lies.
        
                    
             
        
        
        
 Answer:
This sentence is a complex sentence.
Explanation:
A complex sentence is a sentence that contains an independent clause and one or more dependent clauses. An independent clause can stand alone as a sentence, but a dependent clause even though it has a subject and a verb cannot stand alone.
The sentence contain one independent clause and one dependent clause,
the independent clause is in bold below;
eight luxury residential towers that were designed by Steven Holl Architects are connected on the twelfth through eighteenth floors by enclosed glass and steel bridges.
it has a subject and a verb.
While the dependent clause is in bold below;
In Beijing, China, 
it does not make any sense on it own.
 
        
             
        
        
        
Answer:
The main themes in "The Necklace" are greed, deceptive appearances, and beauty and vanity. Greed: Mathilde Loisel's overwhelming desire to live a life of luxury blinds her to the comforts she already possesses and ultimately leads to her losing what wealth and status she initially has.
Explanation:
 
        
             
        
        
        
The tone of the narrator's description in the passage shows that the narrator is humorous.