11. He's a really _____________ person. RELY 12. She made several excellent _____________ in her essay on Charles Dickens. OBSERVE 13. Watching TV shows in English is definitely very _____________ to improve your listening skills. USE 14. The Internet is probably one of the best _____________ ever. INVENT 15. The boat was 16 feet in _____________. LONG 16. Both _____________ and fluency are important when speaking a foreign language. ACCURATE 17. You shouldn't have said that! It was a totally _____________ remark. APPROPRIATE 18. Since the earliest times, civilisations have understood the _____________ of time. IMPORTANT 19. Doing puzzles keeps our brains fit and _____________. HEALTH 20. As well as gaining _____________, by doing puzzles we give our brains a good workout. SATISFY 21. The most _____________ games have sold in the millions. SUCCESS 22. People have _____________ that doing puzzles is good for you. COVER 23. It's easy to find a _____________ to the problems posed. SOLVE 24. There has been an _____________ in the power of their brains. IMPROVE 25. Some _____________ argue that the brain gets better at a task the more it repeats it. SCIENCE 26. The improvement in the _____________is something that happens naturally. PERFORM 27. It remains _____________ whether puzzles are actually helping to boost brainpower or not. CERTAIN 28. According to _____________, most people sleep less than 8 hours every day. SEARCH 29. The advice passed down to our grandparents may contain some _____________. TRUE 30. A good example is the_____________between being cold and catching a cold. RELATION 31. These high-heeled shoes are _____________ for such rough terrain. SUIT 32. Colds are caused by viruses, so in the _____________ of a virus, you can't catch a cold. ABSENT 33. You're too young. This film is _____________ for children your age. APPROPRIATE 34. _____________ now think that we may have viruses in our bodies already. SCIENCE 35. In cold weather, for example, blood vessels in the nose get smaller to stop heat escaping. _____________, this also allows the cold virus to attack the nose or throat more easily. FORTUNATE 36. Victoria Falls in Africa is one of the most _____________sights in the world. SPECTACLE 37. It's also an _____________ place for water sports. CREDIBLE 38. We need you to provide an accurate _____________ of the situation. DESCRIBE 39. On arrival, it's the noise that makes the greatest_____________. IMPRESS 40. The _____________ landscape is also well worth a visit. SURROUND 41. There's a post office a bit _____________down the road. FAR 42. Six months after the accident, he still has _____________ walking. DIFFICULT 43. I can't play tennis that well because I'm a _____________. BEGIN 44. Don't go there. It's _____________. DANGER 45. Read this. It'll be very _____________ for your trip to Australia. USE 46. I didn't find him that _____________, but my friend did. ATTRACT 47. The school has a _____________ for being very up-to-date with technology. REPUTE 48. These are _____________clothes and that's why they are very expensive. DESIGN 49. I left the party because it was _____________ noisy in there. EXTREME 50. I had no _____________but to tell him. CHOOSE giải và giải thích dùm mình với ạ