单项选择 较易0.85 引用8 组卷1301
Paper, one of the four greatest inventions in ancient China, ________by Cai Lun about 2, 000 years ago.
| A．was invented | B．is invented | C．were invented | D．are invented |
2021·广西百色·中考真题
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Too much food ________ in our daily life in the past. We should follow the “clear your plate” campaign (运动) to save food.
| A．was wasted | B．would be wasted | C．had been wasted |
— Did you see Dr Ma yesterday afternoon?
— No. When I got to his office, he ______ already.
— No. When I got to his office, he ______ already.
| A．left | B．has left |
| C．was leaving | D．had left |
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