Which sentence demonstrates correct syntax?

• A. With My Friend My Vacation I Went To The Beach On.
• B. I Swam To The Beach And So Did My Best Friend.
• C. In The Sun We Ate Soft Ice Cream At Beach.
• D. I Had Fun Swimming With The Beach.

Answer: (B)

The main idea here is how sentence structure and verb forms fit together to be clear and natural. This sentence shows the right syntax by starting with a complete clause in the past tense: I swam to the beach. Then it uses an inverted auxiliary construction to show the same action happened to someone else: so did my best friend. Using “so did” keeps the tense consistent and avoids repeating the verb, which is a standard, natural way to convey that another person did the same thing. A comma before the conjunction helps separate the two independent thoughts and makes the meaning crisp: I swam to the beach, and so did my best friend.

The other options stumble with word order, missing or wrong articles or prepositions, or awkward phrasing that breaks the natural flow of English. This sentence, with its correct subject-verb order and the proper use of the auxiliary verb in the second clause, demonstrates good syntax.