This machine has been specially adapted for use underwater．

The city covers an area of 3 million square kilometers．

Plants raised in hothouses are unlikely to be sturdy．

I’m rather skeptical about their professed sympathy for the poor．

The streets are calm again after last night’s disturbances．

You should wipe all the surfaces in the kitchen today．

The company claims that their product makes you thin without dieting．

There were two unconfirmed sightings of UFO in the area．

The shears aren’t sharp enough to cut the grass．

The idea exists only in the minds of poets．