Match the sentence to what it illustrates. independent clauses linked without a conjunction Christ was equal with God, but He willingly became a servant.
an introductory participial phrase Hang gliding is a popular pastime; it takes skill and a bit of daring.
a mark indicating that a list will follow You seem to have found, my good friend, a real peace in life.
a comma linking two independent clauses Walking without a cane, the old man tried to escape unnoticed.
a sentence demonstrating direct address These colors were chosen for the school: purple, green, and white.

Independent clauses linked without a conjunction - Hang gliding is a popular pastime; it takes skill and a bit of daring.

An introductory participial phrase - Walking without a cane, the old man tried to escape unnoticed.

A mark indicating that a list will follow - These colors were chosen for the school: purple, green, and white.

A comma linking two independent clauses - Christ was equal with God, but He willingly became a servant.

A sentence demonstrating direct address - You seem to have found, my good friend, a real peace in life.

Explanation:

When a sentence consists of multiple independent clauses, they need to be connected by a conjunction preceded by a comma or a semicolon (like in the sentence: Hang gliding is a popular pastime; it takes skill and a bit of daring.)

Introductory participial phrases are phrases that contain participles and are located at the beginning of the sentence. Participles are forms of verbs used as adjectives. They end in -ed, -ing or -en.

The mark that indicates that a list will follow is the colon.

Direct address involves the use of a person's name or title to address that person directly.  

quite an interesting way to teach topic sentences, because the answer to this question is the best definition of a topic sentence that one can present, it is as if answering the questions taught you how to do it, this is some real teaching, it is terribly well-done.

the topic sentence in this paragraph is:

topic sentences writers stay on track and keep a paragraph from becoming an aimless collection of sentences about an idea.

which incidentally tells you what a topic sentence should be.

learning how to embrace the effects of colonialism is one of the central ideas of the play.