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A: Hello, Ben, What are you doing?
B: I'm listening to music.
A: Are you listening to pop music?
B: No. I'm listening to classical music.
A: Classical music? ________ do you like such boring music?
B: Well, first, I don't think classical music is boring. And I think classical music can make me ________ calm. What about you?
What kind of music do you like?
A: I like pop music, of course. And I'm a fan of many pop singers.
B: Who's your favorite pop ________?
A: I like Justin Bieber best, He is handsome and has a beautiful voice.
B: Yes, I've ________ of him, too. Do you have his CDs?
A: Sure. I can ________ you some if you want to enjoy his songs.
B: OK. Thank you.
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The ________ is a planet and it ________around the sun. Seven other planets also go around the sun. None of them has an environment like ________of the earth, so scientists do not think they will find life on them. The sun and its planets are called the solar system, and our solar system is a small part of a ________group of stars and planets, called the Galaxy or the Milky Way. There are ________of stars in the Galaxy, and our sun is only one of them.