1. In a few years the small workshop had become a large factory which employed seven hundred and twenty-eight people.
    几年之后，小铺子已经发展成了一个雇有728人的大工厂。

2. It was stolen twenty years ago when Dan was a boy of fifteen!
    这是20年前丹还是一个15岁的孩子时被人偷走的！

3. In 1858, a French engineer, Aime Thome de Gamond, arrived in England with a plan for a twenty-one-mile tunnel under the English Channel.
    1858年，一位名叫埃梅.托梅.德.干蒙的法国工程师带着建造一条长21英里、穿越英吉利海陕的隧道计划到了英国。

4. It would strike twelve in twenty minutes´ time.
    再过20分钟，大钟将敲响12下。

5. I read she´s twenty-nine,
    我从报上看到她是29岁，

6. I´m not more than twenty-nine myself.
    我自己现在还没29岁呢。

7. I´ve lived here for twenty years.
    我在这里住了20年了。

8. It took more than 100,000 slaves twenty years to build the Great Pyramid.
    10多万奴隶用了20年的时间才建成这座大金字塔。

9. It takes about twenty minutes to walk all the way round the pyramid.
    绕金字塔走一圈需要20分钟左右。

10. It is twenty to seven.
    差20分7点。