单项选择 较易0.85 引用9 组卷1372
Paper ________ in ancient China more than 2,000 years ago.
| A．invented | B．was invented | C．invent | D．is invented |
2022·甘肃武威·中考真题
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When Tim _________ why he was late for school, he just kept silent.
| A．was asked | B．asked | C．was asking | D．is asking |
—Do you know when the Internet ________ into China?
—Yes, in the 1990s. And it has changed our life a lot.
—Yes, in the 1990s. And it has changed our life a lot.
| A．is introduced | B．will be introduced | C．was introduced |
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