单项选择 适中0.65 引用2 组卷115
Wang Yaping, the first Chinese female astronaut, gave the star to her daughter ________ she went back to the earth.
| A．as soon as | B．until | C．unless | D．so that |
2023·四川泸州·一模
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Paul is badly hurt on the playground. Don’t move him _________ you know some first-aid knowledge.
| A．unless | B．if | C．because | D．after |
It’s a good habit for students to make a study plan ________ they start to work.
| A．until | B．before | C．since | D．unless |
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