Which number contains a sentence error?

1.mike enjoyed learning spanish, so he signed up to teach the language to police officers.
2.mike enjoyed learning spanish; he signed up to teach the language to police officers.
3.mike enjoyed learning spanish, he signed up to teach the language to police officers.
4.mike enjoyed learning spanish. he signed up to teach the language to police officers.

What would be an example of foreshadowing in a story about a magician who ends up going bad from too much power? a. the author shows the magician preparing his tricks before a show. b. the narrator describes the magician's rise in popularity at the beginning of the story. c. the reader is first introduced to the magician having fun scaring audiences with his tricks. d. the story begins on a cold autumn day in the suburbs of a big city

This is a set of words that begins with a preposition.

If the four main points of this informational speech were changed 1. part-time job interviews ii. summer job interviews iii. college entrance interviews iv. full-time job interviews organization type would change from a. topical, cause-effect b. chronological, topical c. spatial, chronological d. cause-effect, spatial