There is a major point that seems to have escaped you.
A. 有一个主要问题你似乎没有注意到。
B. 你看上去忽略了一个主要问题。
C. 有一个重点,那就是你似乎没有抓住。
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That lazy boy went to class before he had prepared his lesson.
A. 上课之前,那个懒惰的小孩还没预习好。
B. 那个懒惰的小孩不预习就去上课。
C. 在那个懒惰的小孩准备好课之前,他已经到了教室。
When liquids change into gases rapidly at a fixed temperature, they are said to boil.
A. 液体在固定温度下迅速变为气体叫沸腾
B. 当液体在确定温度下迅速变为气体时叫沸腾
C. 液体在被固定温度时能变成煤气用来使水沸腾
If something urgent happens that prevents you from keeping the appointment, you can change or cancel the appointment immediately.
A. 如果某事突发,使你不能如期约会,你应迅速改变或取消约会。
B. 假如有急事需要你另行约会,你可改变时间或即时进行约会。
C. 如果你有急事不能按时赴约,可以立即改变或取消约会。
We accept returns or exchanges within 30 days from the date of the purchase of these cell phones.
A. 手机从购买之日起30天内我们接受退换。
B. 手机在试用30天之后我们可允许退货。
C. 我们保证30天之内购买的手机,包退包换。