1.
ответ: 1,2,5,6
2.
1 written
2 cleaned
3 learnt
4 seen
5 gone
3.
1 i and my friend have bought apples
2 i and my friend have watered
3 i and my friend have written a test
4 i and my friend have helped the mother
5 i and my friend have done morning exercise
4. вместо скобок:
have done, have gone, has not come, have finished, have read, has not come, has played, have done , have begun
3 - didn't come
4 - Did ................start
5 - We didn't look at...
6 - Did a lot of people buy...........
DmitRi Mendeleev is a great Russian scientist of the 19th century.He is recognized as a great chemist who created the periodic classification of the elements.Dmitri Mendeleev was born in Tobolsk in 1834. At school,Dmiti succeed in mathematics,physics,and geography but was not good at languages.In 1855 he graduated from Pedagogical institute in St Peterburg with a gold medal for his achievements .In 1856,he received a degree in chemistry.Dmitri Mendeleev's contribution to the world's science was enormous. He was the first created the dependence of the qualities of the elements on their atomic weight.He forecast that the gaps in the table of elements would be filled in by elements whith had not been discovered yet.Dmitri Mendeleev was greatly honoured as a member of academies in many countries.Elements No 101 was named after him.
<span>What did Mag do yesteday?mag waked in the park.</span>
