题目内容：

Alice：  You seem to be absorbed(全神贯注) in the magazine, David.

David： It is the New scientist, 1.__________ (deliver) to me this morning. Honestly speaking, I am fascinated(着迷的) by the magazine.

Alice： Are there articles or stories about the latest2.__________ (science) breakthrough?

David: Sure. I am reading an article3.______________ (introduce) a new invention --- the “flying car”.

Alice: That sounds interesting. Can you explain to me 4.____ the “flying car” works?

David: Yes. The car has four wheels and two wings that can be folded. So it can 5._________ be driven  on the road or flown at a speed of 110 miles per hour, just like a plane. When the roads are crowded, 6._____ is often the case now,  you can fly it and easily reach your destination. Besides, it uses electricity instead of petrol, so it’s7. ________________ (environment) friendly

Alice: Sounds great! This kind of car will make our lives 8.________  (easy) and more comfortable. By the way, is the “flying car” on the market yet? Can I buy 9.___ now?

David: I’m afraid not. The car 10. ____________ (try) out at present and it still needs to be improved.

Alice： I bet it is very expensive.

David： It does cost a lot of money, but scientists are working hard to bring down the price.