21.  Of all the means of transportation, travelling by ship is the most slowest , but ships can carry a very large number of goods and cover a very long distance in a long period, so ships are usually used in commercial delivery, especially in overseas delivery.

22.  As it turned out, a large number of Americans suffered from it.

23.  As we all know, China, a developing country with its large number of population is struggling along the road towards nation's properity and civilization.

24.  Although, medically, it has been considered a humane way to hasten the death of terminally ill patients, it is still unacceptable in ethics for quite a large number of people.

25.  The hopelessly ill patients possess a large number of hospital beds and a lot of scarce medicine, which is very unfair to those patients who have chance to recover.

26.  A large number of criminals are those whose education are limited and can not find jobs easily.

27.  China needs a large number of professionals to help construct her.

28.  Television can help people keep up with the latest development on politics and science by providing them a large number of such kind of information on time.

29.  And there are a large number of "quality" programmes apart from those that are not.

30.  Yet, this policy is strongly against by a large number of people.