Question

Which sentence has correct punctuation? My friend has visited: France, Italy, and Japan. I simply love: France, Italy, and Japan. Some of my favorite countries are: France, Italy, and Japan. Someday I'll visit these countries: France, Italy, and Japan.

Answer 1

Someday I'll visit these countries: France, Italy, and Japan.

Semi colons are used to introduce a list when it clarifies a larger topic. In the correct sentence, the list is clarifying which countries the speaker wants to visit. It is important not to separate the list from the verb with a semi colon which is why the first three sentences are incorrect. 

Answer 2

The last one is the correct answer, "Someday I'll visit these countries: France, Italy, and Japan.