单项选择 适中0.65 引用3 组卷1005
—____when has the country been open to international trade?
—1978,I suppose.
—1978,I suppose.
| A．Since | B．In |
| C．From | D．After |
2007·陕西·高考真题
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—What happened in the hall?
—I don’t know. People began to rush out ________ I realized what was happening.
—I don’t know. People began to rush out ________ I realized what was happening.
| A．while |
| B．when |
| C．after |
| D．before |
It is difficult for us to learn a lesson in life ________ we’ve actually had that lesson.
| A．until | B．after | C．since | D．when |
You will never gain success________ you are fully devoted to your work.
| A．when | B．because | C．after | D．unless |
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