Some English scientists are identifying problems ____ technology in the 21st cen
题型：不详难度：来源：
Some English scientists are identifying problems ____ technology in the 21st century. If solved, the solutions could change the world. | A．facing | B．faced | C．being faced | D．having faced |
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答案
| A |
解析
| 考查非谓语动词。句中facing technology in the 21st century作定语，修饰名词problems，之间为主动关系，故选A。 |
举一反三
--- I had a hard time _____ this novel.
--- I share your feeling. Who can remember the names of over 100 different characters? | A．getting through | B．taking over | C．giving off | D．putting down |
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.- Can I smoke here?
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.A small plane crashed into a hillside five miles to the east of the city, _____ all on board.| A．killed | B．killing | C．kill | D．to kill |
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.When _____ if he had seen her, Mattew just shook his head.| A．asking | B．asked | C．being asked | D．being asking |
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—How about your vocation?
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