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课时作业(四十) [选修8 Unit 5 Meeting your ancestors] [限时：40分钟] Ⅰ.单项填空 1．—Those scientists invented a robot to care for kids! —It's not surprising. They ________ wonders all the time. A．worked B．were working C．work D．have been working 2．It is nice to see millions who had nothing but a record of misery and hungry ________ to improve their life and living conditions. A．having the chances B．have the chance C．to have the chance D．had the chance 3．—I'll have to go to the classroom. I left my MP5 player there just now. —You don't have to. I ________ it for you. Here you are. A．will bring B．bring C．brought D．have brought 4．Miss Li ________ as a secretary for five years in the company, and now she is general manager of it. A．served B．has served C．had served D．serves 5．—Will you please repeat your idea? —Certainly. But I'm sure that you ________ your attention. A．don't pay B．didn't pay | 
