Jawaban:

1. Negative: The headmaster does not conduct a general meeting for all the teachers every once a week.

Interrogative: Does the headmaster conduct a general meeting for all the teachers every once a week?

2. Negative: Not all participants attend the seminar on time.

Interrogative: Do all participants attend the seminar on time?

3. Negative: She is not a journalist, so she does not have to multitasking skills.

Interrogative: Is she a journalist, so she has to multitasking skills?

4. Negative: Those children do not collect money from the visitor which is thrown to the water.

Interrogative: Do those children collect money from the visitor which is thrown to the water?

5. Negative: I do not earn money by my own because I don't want to know what the struggle is.

Interrogative: Do I earn money by my own because I want to know what the struggle is?