[单选题] （）the new law is used one day, I hope it will not punish people using 3D printers for personal purposes. .

1、[单选题]一Space travel must be very expensive.
一（）The cost of a seat on the Virgin craft is $ 250,000.

• A、That's not true.
• B、Of course.
• C、Why do you think so?

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2、[单选题]一 Perhaps you have heard our products. Would you like to know something more?
一（）

• A、Sure. Go ahead.
• B、I don't need anything.
• C、I've heard a lot about you.

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3、[单选题]She's not very optimistic（）the development of 3D printing.

• A、to
• B、about
• C、at

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4、[阅读理解]Valeria used to accept plastic surgery.

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5、[阅读理解]Which title is the best for this passage?
A. Can genetically modified foods combat world hunger.
B. Genetically modified mood: our answer is no.
C. Genetically modified foods: pros and cons.

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