DIRECTIONS: Identify each sentence as simple, compound, complex, or compound-complex
17.Mr. Griffin runs a pet store, and his children help him.
18.When I get to London, I will try to call, but I may be too busy.
19.The company that contacted me by phone has a bad reputation.
20.My brother and sister will arrive tomorrow.

This sentence is compound because it consists of two independent clauses ("Mr. Griffin runs a pet store" and "his children help him") joined by the coordinating conjunction "and."

Compound-complex - "When I get to London, I will try to call, but I may be too busy."

This sentence is compound-complex because it has two independent clauses ("When I get to London, I will try to call" and "I may be too busy") joined by the coordinating conjunction "but," and it also includes a dependent clause ("When I get to London").

Complex - "The company that contacted me by phone has a bad reputation."

This sentence is complex because it contains one independent clause ("The company has a bad reputation") and one dependent clause ("that contacted me by phone").

Simple - "My brother and sister will arrive tomorrow."

This sentence is simple because it consists of a single independent clause ("My brother and sister will arrive tomorrow") without any additional clauses or conjunctions.