A: Hey, Frank! ?
B: Pretty good.
A: Did you have fun last weekend?
B: . I went to the old people's house with my friends and had a good time.
A: Wow! What did you do there?
B: We helped the old clean their houses and chatted with them. How about you?
A: I just read a science magazine.
B: Oh, really? ?
A: Hum...it is about the main cause of smog(雾霾) and ways to beat it.
B: Great! But ?
A: We can live a greener life by using cleaner energy to solve the problem, I think.
B: You do?
A: Yes, natural gas is a good choice. By the way, ?
B: It's 7:45 now.
A: Oh, God. Hurry up, or we'll be late.
B: OK.
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A. Yes, we did B. How is it going C. what time is it now D. What is it about E. how can we live a greener life |
