Explanation:
To complete the sentence, we need to use the future tense because the action of teaching will occur next year. In English, the future tense is often formed using the modal verb "will" followed by the base form of the main verb. However, in this case, we also need to use the auxiliary verb "be" to indicate that Mr. Paul will be in the process of teaching for a period of time.
Here is a detailed solution explaining why the correct answer is "will be teaching":
1. Subject: Mr. Paul
- Mr. Paul is the subject of the sentence.
- He will be the one performing the action of teaching.
2. Verb: ____________ (teach)
- The verb in the sentence is "teach".
- We need to use the base form of the verb because it is a future tense sentence.
3. Time: next year
- The sentence specifies that the action of teaching will occur next year.
- This indicates that we need to use the future tense.
4. Future tense form: will + base form of the verb
- In English, the future tense is often formed using the modal verb "will" followed by the base form of the main verb.
- Example: "I will teach."
5. Continuous aspect: be + -ing form of the verb
- In this sentence, we need to indicate that Mr. Paul will be in the process of teaching for a period of time.
- To do this, we use the auxiliary verb "be" followed by the -ing form of the main verb.
- Example: "I will be teaching."
6. Combining the future tense and continuous aspect
- By combining the future tense form and the continuous aspect form, we get the correct answer: "will be teaching".
Therefore, the correct answer is "will be teaching".