Объяснение:
1.Triceratops is the most famous of the ceratopsids, a family of large horned dinosaurs.
2.Triceratops is one of the most famous ceratopsians, living in the territory of modern North America, lived at the very end of the Cretaceous period, about 68-66 million years ago.
3.Triceratops had a strong constitution with strong and powerful legs, on the front shorter limbs there were three toes, on the hind ones four, they all ended in small hooves.
4.Pterodactyls were carnivorous pterosaurs and hunted mainly fish and small animals.
5.Like all pterosaurs, pterodactyls had wings.
6.The skulls of adult pterodactyls were long and slender and bore about 90 narrow, tapered teeth.
7.Pterodactyls were diurnal
The room wasn`t cleaned by him yesterday.
A letter will be sent to my friend by me the next Monday.
The book was written by someone.
The text was being discussing by us when he entered.
The topic of discussion has already been chosen by them.
This information was received by me.
The pet must be fed by him every day.
This house was built by my grandfather two years ago.
Pets are kept by people in their house.
All the papers will be given her by me tomorrow.
He always helped by us when he is in trouble.
I will be missed if you don`t take me to the station.
The book will be returned to Marry tomorrow.
Articles about music for news newspaper aren`t usually written by us.
Many friends will be invited to the party.
I wasn`t helped to write the essay in English by my mother.
My mother is often helped about the house by me.
Triceratops is a genus of herbivorous dinosaurs from the family ceratopsid, existed at the end of the Maastrichtian age of the Cretaceous period and the beginning of the Paleocene epoch of the Paleogene period. Approximately from 68 to 66 million years ago in the territories of modern North America. With a large bony collar, three horns on the snout, large thick limbs, and a Rhino-like build, Triceratops are among the most recognizable dinosaurs.
Pterodactylus is a genus of pterosaurs whose fossils have been found mainly in the Solnhofen limestones of Germany, which date back to the end of the Jurassic period (early Tithonian), 152.1—145 million years ago, although more fragmentary fossils have been found in other European countries and in Africa.