28. Which is a compound-complex sentence?
Answer: D
Since we like to go on roller coasters, we go all the time, but we have not been on that coaster yet.
This sentence is a compound-complex sentence because it contains at least two independent clauses and one dependent clause. The independent clauses are "we go all the time" and "we have not been on that coaster yet," while the dependent clause is "Since we like to go on roller coasters."
A) I want to go on vacation with Sally to Mexico, Costa Rica, and Florida.
This sentence is a simple sentence. It has a single independent clause and does not include any dependent clauses, which disqualifies it from being a compound-complex sentence.
B) Even though the sun was shining, my mother told me I could not go to the pool.
This sentence is a complex sentence because it contains one independent clause ("my mother told me I could not go to the pool") and one dependent clause ("Even though the sun was shining"). It lacks a second independent clause, making it incorrect for this question.
C) Holly needs to go to the grocery store, but she does not have enough time to go there today.
This sentence is a compound sentence, consisting of two independent clauses joined by the conjunction "but." It does not contain any dependent clauses, which means it does not qualify as a compound-complex sentence.
D) Since we like to go on roller coasters, we go all the time, but we have not been on that coaster yet.
This is the correct choice as it contains one dependent clause ("Since we like to go on roller coasters") and two independent clauses ("we go all the time" and "we have not been on that coaster yet"). This structure fulfills the requirements for a compound-complex sentence.
Conclusion
The correct answer, option D, is definitively a compound-complex sentence due to its combination of independent and dependent clauses. The other options fail to meet the criteria, as they either consist of only one independent clause or lack the necessary combination of clauses. This distinction is crucial for understanding sentence structure in English grammar.