Answer:
he examples of complex sentences are the following ones:
2)Before you eat the sandwich, please cut 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
A complex sentence is a sentence which has one independent clause and at least one dependent clause. Dependent clauses cannot stand on their own since they do not represent a complete thought. This is why the following sentences are not grammatically correct.
*Before you eat the sandwich,
*When we are ready to leave,
*If she starts to get warm,
Step-by-step explanation: