语法总结
现在完成时写“刚刚完成”和“到目前为止”
has just bought 表示刚发生不久的动作；Up to now, he has sent ... 则表示从过去到现在已经完成了许多次业务传递。
相似句：
- I have just finished my homework.
- Up to now, they have built three bridges.
距离与时间表达
five miles from Silbury 说明空间距离；in three minutes 说明完成动作所需时间，这两类表达在叙事题里常一起出现。
相似句：
- The village is ten miles from the town.
- He finished the race in half an hour.
a great many + 可数名词复数
a great many requests 表示“大量请求”；它后面直接接复数名词，不接不可数名词。
相似句：
- She has made a great many friends here.
- A great many students joined the club.
标题的引申义理解
No wrong numbers 不是字面上的“没有错误的数字”，而是说这种私人“电话”服务不用拨号，也就不存在“打错号码”的问题。
相似句：
- The title Green Fingers means skill in gardening.
- A White Elephant often means a useless possession.