Its a question of some abstract ( )of justice.

The hotel is famous _____its delicious food.

Ive never been to Beijing, but its the place _______.

Its very safe[填空]here.

This offer ____ on October 20, 2016. Your immediate reply by e-mail will be appreciated.

The milk has turned ( ).

“She is from Shanghai, ____ population is larger than that of any other city inChina.”

The Apple Watch is very beautiful, but its too expensive. So I cant _____ it.

阅读理解：阅读下列短文，回答文后问题，选择最佳答案Trees mainly serve man in three important ways: They provide him with wood and other products; they provide him shade; and they help to prevent droughts and floods.Unfortunately, in many parts of the world, man has not realized that the third of these services is the most important．In his eagerness to make money from trees, he has cut them down in large numbers, only to find that without them he has lost the best friends he had. And besides, he is usually too careless to plant and look after new trees. So the forests slowly disappear.This does not only mean that man will have fewer trees. The results are even more serious: for where there are trees, their roots break up soil allowing the rain to sink in and also bind(固定) the soil, thus preventing it from being washed away easily；but where there are no trees, the rain falls on hard ground and flows away, causing floods and carrying away the rich top-soil. When the top-soil is gone, nothing remains but worthless desert.Two thousand years ago，a rich and powerful country cut down its trees to build warships, with which to gain itself an empire．It set up the empire, but, without its trees, its soil became poor and grew weak. When the empire fell to pieces, the home country found itself faced by floods and starvation(饥荒)．1. According to the passage, which is the most important service of trees to man?

8. Hong Kong is ______ the south of China, and Macao is ______ the west of Hong Kong.