Business English 10th Edition by Mary Ellen Guffey,Carolyn Seefer

Exercise 74

A simple sentence has one independent clause. A compound sentence has two or more independent clauses. A complex sentence has an independent clause and a dependent clause. Indicate whether the following sentences, all of which are punctuated correctly, are simple, compound, or complex. Hint: A sentence is not compound unless the words preceding and following a conjunction form independent clauses. If these groups of words could not stand alone as sentences, the group of words is not compound.
Before arriving at the airport, many airline passengers now check in online for their flights.____________