We ..... (just / finish) watching a horror film.
We HAVE JUST FINISHED watching a horror film.
If the kids ... (not turn off) the lights, the school won’t save energy.
If the kids DON'T TURN OFF the lights, the school won’t save energy.
Dangerous chemicals .... (use) to make plastic.
Dangerous chemicals ARE USED to make plastic.
They lost the gold necklace.
The gold necklace .... .
They lost the gold necklace.
The gold necklace WAS LOST.
The last bus ... (leave) ten minutes ago.
The last bus LEFT ten minutes ago.
If she ... (not have) a lot of work, she will go to the forest clean-up.
If she DOESN'T HAVE a lot of work, she will go to the forest clean-up.
These bags ... (not sell) in shops.
These bags ARE NOT SOLD in shops.
They found the treasure in a cave.
The treasure ..... .
They found the treasure in a cave.
The treasure WAS FOUND IN A CAVE.
Keith ... (write) his autobiography last year.
Keith WROTE his autobiography last year.
If she ... (see) rubbish in the street, she will put it in the bin.
If she SEES rubbish in the street, she will put it in the bin.
Cotton ... (not grow) in this country.
Cotton ISN'T GROWN in this country.
A famous architect designed these buildings.
These buildings ... .
A famous architect designed these buildings.
These buildings WERE DESIGNED BY A FAMOUS ARCHITECT.
It’s only eight o’clock, but the children ... (already / go) to bed.
It’s only eight o’clock, but the children HAVE ALREADY GONE to bed.
If the students don’t study, they ... (fail) their exams.
If the students don’t study, they WILL FAIL their exams.
What .... (baby elephants / call)?
What ARE BABY ELEPHANTS CALLED?
Shakespeare wrote Romeo and Juliet.
Romeo and Juliet .... .
Shakespeare wrote Romeo and Juliet.
Romeo and Juliet WAS WRITTEN BY SHAKESPEARE .
... (Edward / see) the new action film yet?
HAS EDWARD SEEN the new action film yet?
If we recycle plastic bottles, we ... (not pollute) rivers and seas.
If we recycle plastic bottles, we WON'T POLLUTE rivers and seas.
Halloween ... (not celebrate) in some countries.
Halloween ISN'T CELEBRATED in some countries.
Marie Curie discovered radium.
Radium ... .
Marie Curie discovered radium.
Radium WAS DISCOVERED BY MARIE CURIE .