1. A. natural B. solar C. planet D. fact 2. A. should B. around C. house D. sound 3. A. celebrate B. cousin C. city D. cinema Exercise 2: Choose the word whose stress is different from the others 1. A. welcome B. upstairs C. hobby D. eggshell 2. A. difficult B. unusual C. expensive D. occasion Exercise 3: Choose the correct answer A, B, C or D 1. In the future, many cars will run ________ electricity, which doesn’t cause air pollution. A. in B. on C. by D. with 2. Robots make car manufacturing ________ because they can take on dangerous jobs in place of humans. A. stronger B. safer C. larger D. heavier 3. Some of her paintings are displayed at the local ________. A. art gallery B. museum C. stadium D. hospital 4. Life in the countryside is ________. There aren’t many things to do there. A. interesting B. inconvenient C. boring D. noisy 5. To ________ waste we should avoid buying products with a lot of packaging. A. recycle B. reuse C. reduce D. remake 6. ‘Can you tell me the way to Tan Ky House please?’ ‘________. Go straight, then turn right.’ A. Certainly B. Let’s go C. Good idea D. My pleasure 7. You should turn the tap ________ when you brush your teeth to save water. A. up B. down C. on D. off 8. There are lots of ________ problems nowadays, mainly because of pollution. A. natural B. social C. practical D. environmental 9. ________ robots can help to teach children in the classroom, they will never replace teachers. A. When B. Although C. Because D. If 10. I do not agree _______ the idea that robots will be useful to us in the future. A. with B. in C. on D. by