55.　 Because we have so much to choose from, many companies and stores offer advice about/on what we should eat.

54.　 Choosing what to eat is no longer as easy as it once was.

53.　 We are what we eat.

52.　 Come here and I’ll whisper the question in your ear.

高一英语第一册下

51.　 He was just about to say something when Peter turned around.

50.　 You must believe in what you do and who you are if you want to succeed in the world-the magical world of Hogwarts and the real one, where someone is born and what a person looks like is not as important as what he or she grows up to be.

49.　 Welcome to the world of JK Rowling! It is a world of magic and wonders, a world where anything can happen.

48.　 So the next time you look for a tape or a CD, don’t just look for Chinese or American music---open your ears to the sounds of the world!

47.　 What do you have in mind?

46.　 Without air, water and sunlight there would be no living things.　 / but for/ thanks to