Answer:
The complex sentences are:
2. Before you eat the sandwich, please cut it in half.
4. When we are ready to leave, we will send you a text message.
5. If she starts to get warm, Janna will turn on the air conditioner.
Explanation:
To understand what a complex sentence is, we must first understand a few concepts:
- An independent clause is a group of words that has a subject and a predicate and that conveys a complete thought, making sense on its own.
- A dependent or subordinate clause also has a subject and a predicate, but it does not convey a complete thought on its own. It requires more information, which is given by the main clause.
- A complex sentence is formed when we join an independent clause to a subordinate one. To do that, we need a subordinating conjunction, a type of word that connects the two clauses and establishes a relationship between them. Examples of subordinating conjunctions are: because, before, after, if, since, although, etc.
With that in mind, we can easily see that options 2, 4, and 5 are complex sentences. That can be identified by the use of the subordinating conjunctions "before", "when", and "if", respectively.
