Title 12.4. HS - TEST 4 (UNIT 10-UNIT 12).docx ✅

A. was B. is C. has been D. had been 12. It’s important ____________ wildlife in the area. A. to conserve B. conserving C. conservation D. conserve 13. Japan 40% of its waste every year. A. reuses B. recycles C. refill D. broken 14. We were delighted ____________ your letter yesterday. A. to get B. got C. getting D. get 15. Sooner or later a satellite ____________ by a large piece of rubbish. A. will destroy B. will destroyed C. will be destroyed D. will been destroyed 16. Let’s play tennis instead of ____________ television. A. watch B. watching C. watches D. to watch 17. Everything depends on what you mean ____________ the word “free”. A. about B. for C. of D. by 18. We should use ____________ bags instead of plastic bags. A. cloth B. clothe C. clothed D. clothing 19. Beer ____________ for breakfast in England years ago. A. used be drunk B. used to be drunk C. used to drunk D. used to be drank 20. I ____________ some rice on the floor of the chicken coop. A. raised B. grew C. threw away D. scattered 21. People will take ____________ of robots to do household chores. A. chance B. condition C. success D. advantage 22. Many people think that robots will make workers ____________. A. employed B. unemployed C. no job D. the jobless 23. It is certain that robots will ____________ the quality of our lives. A. improve B. rise C. lift D. develop 24. With healthier ____________ and better medical ____________, people will have a longer life expectancy. A. ways – care B. lifestyles – care C. life – cares D. lifestyles – medicine 25. Many people think the cyberworld will ____________ the real world. A. take B. provide C. take place D. replace 26. The invention of penicillin is very useful because it has ____________ lots of lives. A. lost B. brought C. saved D. solved 27. It is said that in a couple of decades, we ____________ telepathy and holography.
A. use B. will be used C. have used D. will be using 28. Mars is named ____________ the Roman God of war. A. to B. about C. after D. under 29. By 2050, we ____________ in smart homes. A. will have lived B. will be lived C. will live D. are living 30. The Earth seems too small to ____________ the increasing population. A. provide B. accommodate C. supply D. stand 31. An astronaut has to wear a spacesuit ____________ it may be very cold in space. A. so B. but C. because D. because of 32. The UFO landed on a ____________ area. A. grass B. grassy C. grassed D. grassing 33. Scientists have been trying to find ____________ of aliens. A. amounts B. records C. traces D. sights 34. There have been many UFO ____________ reported. A. sights B. signs C. signals D. sightings 35. Mars is called the Red Planet due to its ____________ surface. A. red B. redder C. reddest D. reddish 36. In the mid-19 th century, scientists discovered that Mars had some similarities ____________ Earth. A. to B. with C. of D. from 37. Neptune is bright blue ____________ it is named after the Roman God of the sea. A. because B. but C. so D. or 38. There is a lot of interest in doing experiments in the ____________ conditions. A. weigh B. weighing C. weight D. weightless 39. Titan, one of Saturn’s ____________, has a thick atmosphere. A. satellite B. spaceships C. moons D. comets 40. Scientists believe that Mars also ____________ seasons just as the Earth does. A. spends B. experiences C. experiments D. takes 41. Facebook was built on the ____________ of earlier social network sites like MySpace and Bebo. A. succeed B. successful C. successfully \D. success 42. It is thought that driverless cars will transform the way we move ____________ cities in the future. A. around B. away C. along D. ahead 43. Little Pascal ____________ a mechanical calculator which could do additions or subfractions very quickly.