1. (+) Her homework is done by her.
`->` (-) Her homework isn't done by her.
`->` (-) Is her homework done by her?
2. (+) The house is being built by them.
`->` (-) The house isn't being built by them.
`->` (?) Is the house being built by them?
3. (+) My homework iss done by me.
`->` (-) My homework isn't done by me.
`->` (?) Is my homework done by me?
4. (+) Flowers was planted in Da Nang.
`->` (-) Flowers wasn't planted in Da Nang.
`->` (?) Was flowers planted in Da Nang?
5. (+) The omelette is being cooked by me.
`->` (-) The omelette isn't being cooked by me.
`->` (?) Is the omelette being cooked by me?
6. (+) TV is watched by Lan.
`->` (-) TV isn't watched by Lan.
`->` (?) Is TV watched by Lan.
7. (+) The Temple of Literature was built in the `11^th` century.
`->` (-) The Temple of Literature wasn't built in the `11^th` century.
`->` (?) Was the Temple of Literature built in the `11^th` century?
8. (+) My school is surrounded by trees.
`->` (-) My school isn't surrounded by trees.
`->` (?) Is my school surrounded by trees?
