【正文】
A scientist builds a time machine and travels to the future. Maybe you could try to invent a time machine! No, I don’ t think so. I’ m more interested in discovering new medicines. I don’ t agree. With a time machine, you can travel to the future and just buy new medicines. That’ s true. Z:W:Z:W:Z:W: Z: W: Z: ? 1. Look! They are ______ a new factory. ? A. Build B. builds C. building D. built ? 2. John likes animals, and he is ________ in plants, too. ? A. happy B. interested C. difficult D. guilty ? 3. Do you think English is difficult? ? _______. It’ s my favourite. ? A. I don’ t think so. B. I think so. ? C. That’ s true. D. I agree. ? 4. Mary sits in front of Lily. You can also say Lily sits _______ Mary. ? A. beside B. in C. next to D. behind ? 5. I will have an exam tomorrow. ? A. Thank you. B. Good luck. ? C. Really? D. Well done