单项选择 适中0.65 引用3 组卷507
Linda couldn’t have broken into the teacher’s office at midnight, for it was only nine o'clock ______she returned to the dormitory and had a sound sleep.
| A．before | B．when |
| C．that | D．until |
19-20高三上·江苏宿迁·期末
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—What’s your plan for this winter vacation?
—I’ll take an express train to Shanghai for my holiday ___________ school ends.
—I’ll take an express train to Shanghai for my holiday ___________ school ends.
| A．hurriedly | B．soon | C．immediately | D．since |
It might be years ______ we ______ the creation of artificial intelligence systems capable of true human-like cognition.
| A．since, made possible | B．before, make possible |
| C．since, made possible that | D．before, make it possible |
Helen was very rude to me. I refuse to speak to her again __________ she says sorry.
| A．If | B．until | C．because | D．since |
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