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课时作业(三十八) [选修8 Unit 3 Inventors and inventions] [限时：35分钟] Ⅰ.单项填空 1．When I turned to the person ________ next to me, I recognized that he was my schoolmate. A．seating B．being sat C．sit D．seated 2．________ in gardening and volunteering work, Mrs Black leads a busy and rich life at her old age. A．Employing B．Employed C．To employ D．Being employed 3．________， I can see that those terrible events shaped me into the person I am today. A．Having looked back B．Looking back C．Being looking back D．To be looking back 4．________ the youth to the rising sun at 8 or 9 a. m. Mao Zedong expressed his great hope for the young men. A．Compared B．To compare C．Comparing D．Compare 5．The garden, ________ with a high wall and thick trees, is much bigger than what it used to be. A．having surrounded B．surrounded C．surrounding D．which surrounds 6．—Listen, there is some strange noise. This machine must be________. | 
