1 biofuels 2 fossil fuels
3 geothermal
4 hydroelectricity
5 nuclear
6 solar
a the sun
b the movement of water
in rivers
c the movement of air
d plants
e the heat from the earth
f the movement of waves
in the ocean
g coal, oil, and natural gas
h uranium
7 tidal
8 wind​

if you write neatly, your write homework nice.

if i had a chance to go to london i'd like to see not only the places of interest but many other interesting things there. certainly everyone knows that the most famous sights of the capital of the great britain are tower bridge over the river themes, big ben, the houses of parliament, trafalgar square, saint paul's cathedral, the british museum, art gallery. it seems i know all these sights well because we have been getting acquainted with them since the 5-th form up to now. i think it will be enough one-day excursion to see all these sights with my own eyes. i'd better visit the one of the numerous english pubs- the local beer halls where englishmen like to spend their free time reading, talking, discussing traditional matters - political, sports and weather over the glass of beer. or i'll try to feel myself as a real englishman visiting a house of a common english family. i'd like to sit round the fire place which is traditional for every english house. if i were lucky i would visit one of the competition or a tournament where traditional english sport games are played - rugby or lawn tennis, horse racing or cricket. i'd like to walk among the students of cambridge or oxford university in their campus and to imagine that i am one of them. i believe my impression on london won't be full if i don't visit madam tussad's museum in baker street. i'm looking forward to seeing their life - size wax portraits of kings and queens, well - known writers, singers and even criminals one of my evenings in london i'd like to spend in a disco club to watch the way english teenagers and young people spare their time, to listen to their popular groups, to make friends and what not.

there are 15 tables in our class   our teacher is kind     she works very hard     board in our class is big     it is blue and nice

dear friend. thank you for your letter.i really miss you,too.i think it is a great idea to visit you in london. all of us hope to get   the invitation letter very soon.what can i tell you about my holidays? this summer i was in the country.i was very lucky.the weather was fine all thr tine.my friends and i spend a lot of time.this one is for you.i hope you   will. you see   that i am bigger than i was lest year.i know you have a sweet tooth friend so i asked my granny to make some cherry jam. with lots of love and best wishes from me and my friends.                      

                                                                                your   твое имя и фамилия. 

  надеюсь переведёшь сам заранее !