1. Identify the type of sentence and change the sentence to passive form. He sings a song. Affirmative
Passive: A song is sung by him.
1. The boy killed the spider.
Passive:

2. Help him.
Passive:

3. Farmers sow maize in the rainy season.
Passive:

4. Are you writing a letter?
Passive:

5. The workers were digging a canal.
Passive:

6. Have you finished your job?
Passive:

7. Do not ignore my suggestions.
Passive:

8. I will finish the job by the end of this week.
Passive:

1. The boy killed the spider.

Passive: The spider was killed by the boy.

2. Help him.

Passive: N/A (No object. The object is changed to the subject while changing to passive voice. Without a subject, a sentence cannot be changed to passive. And, a command can't, either.

3. Farmers sow maize in the rainy season.

Passive: Maize is sowed by farmers in the rainy season.

4. Are you writing a letter?

Passive: Is the letter being written by you?

5. The workers were digging a canal.

Passive: A canal was being dug by the workers.

Explanation:

the answer is d, first person always relates to the speaker. i hope this : )