1) Many electricity- related discoveries such as the invention of the electrostatic generator classification of conductors and insulators ... by the 17th century. a) were made b) have been made c) had been made 2) The 1st Tidal Power Plant (TPP) in our country using the power of seas and oceans at the Barents sea inside the Arctic Circle for 5 years a) was building b) has built c) has been built 3) After the TPP (Tidal Power Plant) and the equipment set up it was towed by the sea, 100 km away, to be placed on the sand-gravel platform prepared by divers. a) was constructed b) has been constructed c) had been constructed 4) The world's third biggest Tidal Power Plant at Swansea Bay in the UK involving the construction of breakwater facilities by 2022. a) will be completed; b) will have been completed; c) will have completed 5) Among sources of renewable energy, tidal energy from relatively high cost and limited availability of sites with sufficiently high ranges or flow velocities. a) has suffered; b) is suffered c) have suffered 6) According to the declaration * coal's bottom line" of UN, 20 countries from Europe, America and Africa generating energy from coal in 10 years. a) will stop b) stopped c) will have stopped 7) Some researchers and archeologists stated that ancient ceramic pot with a set of copper sheets and a rod of iron dated 600 A.D. ... a battery, galvanic cell for electroplating or electrotherapy. a) were b) had been c) have been 8) Benjamin Franklin is acknowledged as an outstanding scientist a founder of the theory of atmospheric electricity and the inventor of a means of protecting against the disastrous effect of lightning -the rod. Since that time he ...a great public figure. a) has become b)has became c) had become 9) International group of specialists that has developed a project "Green Sahara" simulated lots of situations. To see the risks a great deal of experiments ... before. a) had been carried out b) have been carried out c) were carried out 10) Researchers from Meryland University are ready to present a project about grand works in the Sahara . The biggest in the world desert , green area by means of wind and solar farms in 40 yeas. They are absolutely sure. a) will be turned into b) will turn into c) will have been turned into
Complete the text with for and since. I've had three different homes since I was born. My family and I lived in a small flat FOR the first five years of my life then we moved to a larger one after my second sister was born . My parents have lived there SINCE then and don't want to move anywhere else because they love the area. I moved out When I got engaged and I've lived in a small house near the Danube FOR the last seven years. My husband and I have been married FOR almost five years now and we're expecting our second child soon. We already have a daughter it was her second birthday yesterday and do we're hoping for a son this time. I've been pregnant SINCE February. I've been a professional photographer FOR nearly six years now and I love it . I worked for Newsweek FOR four years and I've been freelance SINCE I left I much prefer working for myself Although I miss all the fun of working in an office and the gossip of course! My favourite camera is my old Nikon 601. I've had it SINCE my 21 st birthday. I must have taken about twenty thousand photos with it and it still works perfectly !
