Answer :
In each sentence, the verb must agree with the subject in terms of singular or plural form. Here are the correct answers for each sentence and a sample sentence using the same verb:
1. Mr. Wilson teaches about the sky.
The teacher teaches science in the classroom.
2. The Moon turns around the Earth.
The Earth turns on its axis every day.
3. The light of the Sun shines on us.
The sunlight shines through the window in the morning.
4. Stars help me see the path.
The stars help sailors navigate the sea at night.
By ensuring that the verb agrees with the subject in terms of singular or plural form, you maintain grammatical accuracy in your sentences.