将下列句子译成英语。必须用上所给的提示词。
1. 我爷爷习惯早起。(be used to)
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2. 快点,否则你会迟到.。( hurry, or)
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3. 上周这时候我们正在为考试做准备。 ( prepare for)
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4. 直到算出了那道题她才离开学校。( not...until, work out)
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1. My grandfather is used to getting up early,
2. Hurry up, or you'll be late.
3. We were preparing for the exam(s) (at) this time last week.
4. She didn't leave her school until she worked out the problem.
(答案不唯一)