I am not really that sure but i think they are what people are like :/
Answer:
Change the sentences below to negative
1. Have you never wanted to be an engineer?
2. It hasn't rained all the day.
3. They haven't participated in the competition.
Change the sentences below to question form
1.Have you visited your uncle's home twice?
2. Has she worked in your company?
3. Since when haven't you seen him back?
