II. Put the verbs in the brackets into the correct form( Present Perfect or Present Perfect
Continuous)
1. She ( to look) for her key since she came home.
2. They ( to be ) here since two o’clock.
3. How long Mary and Ann (to know) each other?
4. She (to wait ) here for three hours.
5. How long it (to snow) ?
6. How many jobs you (to have)?
1. Alexander Fleming is not as famous as Albert Einstein, Aristotel or Isaac Newton. Some people can say that he hasn't made a great CONTRIBUTION to science.
2. However, Fleming has also discovered much. His invention has become a great IMPROVEMENT in people's lives.
3. Alexander Fleming was born in Ayrshire in Scotland in 1881. He was a graduate of the MEDICICAL school of St Mary's Hospital in London.
4. Fleming is well known for his discovery of penieillin. The medicine is still used to cure diseases caused by bacteria. In 1945, the SCIENTIST shared the Nobel prize in Medicine with Howard Florey and Ernst Boris Chain.
5. In Madrid there is a statue of this KNOWLEDGED man who made our lives safer.
Объяснение:
Sloths live exclusively on trees. A day is given more than 15 hours of healthy sleep. Sloths have to save energy, because the food they eat is not high-calorie. In normal condition, the speed of their average movement on the tree is no more than 1.5 meters. If necessary, they can swim perfectly. Animals climb off trees to the ground extremely rarely, once a week. On the ground, the animal moves very slowly. Sloths feed mainly on tree with leaves.The most ferocious predator for the sloth, is the harpy bird. She sees him for thousands of meters and is able to quickly overtake and take by surprise. In the wild, the sloth animal lives 8 - 10 years.The distinguishing feature of a sloth is two or three hooked fingers, the weight is quite small - 4-6 kg. Fur is brownish-gray. The limbs of the sloth are long, but the head is tiny. Thanks to clinging fingers, he can cling anywhere, hanging, swinging, crawling, jumping.
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